Example & Tutorial understanding programming in easy ways.

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What is garbage collection?

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Posted on Feb 2, 2019 by Rajesh Kumar

What do you understand by Synchronization?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are different types of access modifiers?

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Posted on Feb 2, 2019 by Rajesh Kumar

When we can declare a method as abstract method ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Java Virtual Machine (JVM)

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Posted on Feb 2, 2019 by Rajesh Kumar

Can abstract modifier be applied to a variable?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is abstract class in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we define abstract class (as outer class) and class ( inner class) in java ?If Yes give an example .

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Posted on Feb 2, 2019 by Rajesh Kumar

How to define an Abstract class?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why we define constructor in abstract class in java when we can't initialized it abstract class. Or how constructor of abstract class can used. Give an example

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we define abstract class (as inner class) and class ( outer class) in java ?If Yes give an example?

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Posted on Feb 2, 2019 by Rajesh Kumar

Abstract method

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we declare abstract method private ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can abstract methods synchronized?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to define an Interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we create a interface within interface ?If Yes then give an example .How we can call inner interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we declare a enum within interface ?If Yes then give an example .How we can call enum ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is output of following ?explain why?

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Posted on Feb 2, 2019 by Rajesh Kumar

How many number of non-public class definitions can a source file have?

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Posted on Feb 2, 2019 by Rajesh Kumar

How many number of public class definitions can a source file have?

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Posted on Feb 2, 2019 by Rajesh Kumar

What happened If we compile and run following code?

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Posted on Feb 2, 2019 by Rajesh Kumar

What happens if parent is not serialized and child class are serialized?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is OOPS(Object Oriented Programming)?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between procedural and object-oriented programs?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between Assignment and Initialization?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is OOPS(Object-Oriented Programming) principle?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is encapsulation principle?

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Posted on Feb 2, 2019 by Rajesh Kumar

Explain the Inheritance principle.

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Posted on Feb 2, 2019 by Rajesh Kumar

Explain the Polymorphism principle.

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Posted on Feb 2, 2019 by Rajesh Kumar

Explain the different forms of Polymorphism.

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Posted on Feb 2, 2019 by Rajesh Kumar

What are Class, Constructor and Primitive data types?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is an Object and how do you allocate memory to it?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between constructor and method?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are methods and how are they defined?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the use of bin and lib in JDK?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is casting?

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Posted on Feb 2, 2019 by Rajesh Kumar

How many ways can an argument be passed to a subroutine and explain them?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between an argument and a parameter?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are Access Specifiers available in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Describe the wrapper classes in Java.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the class variables ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why there are no global variables in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between class variable, member variable and automatic(local) variable

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Posted on Feb 2, 2019 by Rajesh Kumar

When are static and non static variables of the class initialized?

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Posted on Feb 2, 2019 by Rajesh Kumar

When are automatic variable initialized?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is method Overriding?

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Posted on Feb 2, 2019 by Rajesh Kumar

What restrictions are placed on method overriding?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Method overloading?

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Posted on Feb 2, 2019 by Rajesh Kumar

What restrictions are placed on method overloading?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between Overloading and Overriding?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can overriding methods have different return types?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can constructors be overloaded?

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Posted on Feb 2, 2019 by Rajesh Kumar

If you use super() or this() in a constructor where you us it in the constructor?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between ArrayList and vector?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between HashMap and HashTable?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between Arrays and ArrayList ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between HashMap and HashTable?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between Arrays and ArrayList ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Describe the feature of try-with-resorce feature of jdk 1.7?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between List and Set?

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Posted on Feb 2, 2019 by Rajesh Kumar

When to use ArrayList or LinkedList?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between iterator access and index access?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which all classes implement Set interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

Where you use List and where ArrayList?

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Posted on Feb 2, 2019 by Rajesh Kumar

If an ArrayList has to be iterate to read data only, what are the possible ways and which is the fastest?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the classes implementing List interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

if accessing through iterator is slow then why do we need it and when to use it?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which design pattern Iterator follows?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to sort list in reverse order?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can a null element added to a Treeset or HashSet?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to sort list of strings - case insensitive?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to make a List (ArrayList,Vector,LinkedList) read only?

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Posted on Feb 2, 2019 by Rajesh Kumar

How can Arraylist be synchronized?

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Posted on Feb 2, 2019 by Rajesh Kumar

How we can sort any class on the behalf of the properties of collection. Like we has a collection of named Employee objects we need shortlist by using Employee ID.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is ConcurrentHashMap?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which is faster to iterate LinkedHashSet or LinkedList?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which data structure HashSet implements?

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Posted on Feb 2, 2019 by Rajesh Kumar

Arrange in the order of speed - HashMap,HashTable, Collections.synchronizedMap,concurrentHashmap?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the use of Dimond operator feature of java7?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is IdentityHashMap?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is WeakHashMap?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is an exception?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which is superclass of Exception?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Exception and Error ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is exception handling?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is a Thread ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Collection framework in java interview questions

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between thread and process?

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Posted on Feb 2, 2019 by Rajesh Kumar

1. What is OOPS?

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Posted on Feb 2, 2019 by Rajesh Kumar

1. What is OOPS?

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Posted on Feb 2, 2019 by Rajesh Kumar

2. Write basic concepts of OOPS?

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Posted on Feb 2, 2019 by Rajesh Kumar

How do you implement Thread in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

When to use Runable and Thread in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between start() and run() method of thread class

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Posted on Feb 2, 2019 by Rajesh Kumar

Difference between Runnable and Callable in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

3. What is Encapsulation?

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Posted on Feb 2, 2019 by Rajesh Kumar

4. What is Polymorphism?

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Posted on Feb 2, 2019 by Rajesh Kumar

5. What is Inheritance?

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Posted on Feb 2, 2019 by Rajesh Kumar

6. What is multiple inheritance and does java support?

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Posted on Feb 2, 2019 by Rajesh Kumar

7. What is an abstraction?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is thread-safety?

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Posted on Feb 2, 2019 by Rajesh Kumar

Whar is race condition in multi-threading in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

8.What is the difference between abstraction and encapsulation?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Executors Framework ?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to stop thread in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

9. what is the use of super keyword

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Posted on Feb 2, 2019 by Rajesh Kumar

What happens when an Exception occurs in a thread?

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Posted on Feb 2, 2019 by Rajesh Kumar

10.what is the Advantage of OOPs over Procedure-oriented programming language

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Posted on Feb 2, 2019 by Rajesh Kumar

Why wait, notify and notifyAll are not inside thread class?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is ThreadLocal variable in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

11.What is final variable and Use of final variable

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Posted on Feb 2, 2019 by Rajesh Kumar

You have thread T1, T2 and T3, how will you ensure that thread T2 run after T1 and thread T3 run after T2?

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Posted on Feb 2, 2019 by Rajesh Kumar

What does yield() method of Thread class do?

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Posted on Feb 2, 2019 by Rajesh Kumar

Difference between submit() and execute() method thread pool in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the different states of a thread\'s lifecycle?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is use of synchronized keyword?

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Posted on Feb 2, 2019 by Rajesh Kumar

12.What is final class - Using final to prevent inheritance?.

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Posted on Feb 2, 2019 by Rajesh Kumar

13.what is final Method.

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Posted on Feb 2, 2019 by Rajesh Kumar

14.what is the use of final keyword with Variables?

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Posted on Feb 2, 2019 by Rajesh Kumar

You have thread T1, T2 and T3, how will you ensure that thread T2 run after T1 and thread T3 run after T2?

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Posted on Feb 2, 2019 by Rajesh Kumar

15.point to be remember keyword final.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Serialization? given an example.

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Posted on Feb 2, 2019 by Rajesh Kumar

17.Can you create a program without main method ?.

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Posted on Feb 2, 2019 by Rajesh Kumar

what is use of serialization in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

why serialization in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

how to serialization in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the 6 usage of this keyword in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

16.what is Runtime polymorphism or Dynamic Method Dispatch

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Posted on Feb 2, 2019 by Rajesh Kumar

What is a Serial Version UID (serialVersionUID) and why should I use it?

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Posted on Feb 2, 2019 by Rajesh Kumar

why serialversionuid is required?

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Posted on Feb 2, 2019 by Rajesh Kumar

How many methods in the Serializable interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the difference between serializable and externalizable interface in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between static and dynamic binding ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we override the static method?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the advantages or usage of threads?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is operator overloading?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why Multiple Inheritance is Not Supported in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How downcasting is possible in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is function overloading?

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Posted on Feb 2, 2019 by Rajesh Kumar

When to use private constructors in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is transient variables in java with example?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Serialization and deserialization in java given with example?

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Posted on Feb 2, 2019 by Rajesh Kumar

what are the different approach to make object Serializable? Other than Serialization.

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Posted on Feb 2, 2019 by Rajesh Kumar

What happens if the object to be serialized includes the references to other serializable objects?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the Difference between volatile and transient keyword in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Serialization is NOT save the value of static class attributes. Why static variables are not serialized?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we overload main() method?

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Posted on Feb 2, 2019 by Rajesh Kumar

what are the the main keyword used in exceptation handling?

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Posted on Feb 2, 2019 by Rajesh Kumar

what are the the main keyword used in exceptation handling?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why we need Aggregation?

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Posted on Feb 2, 2019 by Rajesh Kumar

Explain Java Exception Hierarchy followed by Throwable class?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are important methods of Java Exception Class?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the relationship between a class and an object?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between Checked and Unchecked Exception in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between throw and throws keyword in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are access modifiers?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to write custom exception in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is OutOfMemoryError in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are different scenarios causing “Exception in thread main”?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are access modifiers?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between final, finally and finalize in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the various types of constructors?

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Posted on Feb 2, 2019 by Rajesh Kumar

What happens when exception is thrown by main method?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between constructor and method?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we customize the Serialization process?

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Posted on Feb 2, 2019 by Rajesh Kumar

What changes are compatible and incompatible to the mechanism of java Serialization?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we have an empty catch block?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between Error and Exception?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can static block throw exception?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is finally block?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we have a try block without catch or finally block?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we have a try block without catch or finally block?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the Difference between method Overloading and Overriding?.

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we have multiple catch blocks following a single try block?

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Posted on Feb 2, 2019 by Rajesh Kumar

Is it possible to have finally block without catch block?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can you declare the main method as final?.

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Posted on Feb 2, 2019 by Rajesh Kumar

When a finally block does not get executed?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we handle more than one exception in a single catch block?

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Posted on Feb 2, 2019 by Rajesh Kumar

How are the exceptions handled in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between abstract class and interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between ClassNotFoundException and NoClassDefFoundError?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is throw keyword?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is use of throws keyword?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the possible combination to write try, catch finally block?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the possible combination to write try, catch finally block?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to create custom Exception?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is JVM (Java Virtual Machine)?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is JIT (Just- in-Time) Compilation?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Object Oriented Programming?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is StackOverflowError?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is Java Naming conventions?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What’s the difference between “Abstract” classes and “Interfaces”?

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Posted on Feb 2, 2019 by Rajesh Kumar

What’s difference between Static and Non-Static fields of a class?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are Class loaders?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Bootstrap, Extension and System Class loader?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Reflection API in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the advantages of using exception handling?

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Posted on Feb 2, 2019 by Rajesh Kumar

What’s the difference between static and dynamic class loading?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is String in Java? String is a data type?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why String is an immutable Object?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is use of synchronized keyword?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are different ways to create String Object in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we use String in switch case?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the Difference Between String , StringBuilder and StringBuffer Classes in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

Can a thread call multiple synchronized methods on the object of which it hold the lock?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can static methods be synchronized?

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Posted on Feb 2, 2019 by Rajesh Kumar

How many types of memory areas are allocated by JVM?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the various access specifiers for Java classes?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between static binding and dynamic binding in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can two threads call two different static synchronized methods of the same class?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are synchronized methods and synchronized statements?

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Posted on Feb 2, 2019 by Rajesh Kumar

When you will synchronize a piece of your code?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why synchronization is important?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Java String Pool?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why String is popular HashMap key in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Reflection in Java and where is used?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the disadvantage of using the reflection API?

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Posted on Feb 2, 2019 by Rajesh Kumar

How can you get the class object from a class name?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the basic Functionality of Reflection Api in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to access private field using Reflection in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to access private metod using Reflection in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

what string method in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

what methods supported by String class in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Dynamic Class Loading using java Reflection Api ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What do you understand by Executor Framework in Java, what is java executor framework

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Posted on Feb 2, 2019 by Rajesh Kumar

How to terminate a thread in Executor Framework in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Write a function to determine whether or not a string is a palindrome?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the role of Executors.unconfigurableExecutorService in Executor Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are Difference Between String , StringBuilder and StringBuffer Classes with Example in Java ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is a wrapper class in java? Explain with examples.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the role of ExecutorService in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is String subSequence methodin java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between shutdownNow() and shutdown() in Executor Framework in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Write a method that will remove given character from the String in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How do you check if two Strings are equal in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to Split String in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Executors in java Executor Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the role of FutureTask and Future in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the role of Executors.privilegedThreadFactory() in Executor Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are differences between JVM,JRE and JDK ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why Java does not support operator overloading ?

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Posted on Feb 2, 2019 by Rajesh Kumar

How can we make String upper case or lower case in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between creating string as new and literal in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we define two methods in a class with the same name?

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Posted on Feb 2, 2019 by Rajesh Kumar

What ie Thread Safety in java ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the different policy in Executor Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Anonymous Class in Java ?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to get return value of a callable thread in java Executor Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why String is immutable or final in Java with example?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between String and new String() in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the new features introduced in jdk 1.7?

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Posted on Feb 2, 2019 by Rajesh Kumar

Can we compare String using == operator? What is risk?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between Compare to and equals method in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is binary literals feature in jdk 1.7?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is collection framework in Java? give its advantage?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to create String buffer in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the basic interfaces of Java Collections Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the benefit of Generics in Collections Framework?

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Posted on Feb 2, 2019 by Rajesh Kumar

What are the Methods of Collection interface in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What stringbuffer method in java used?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What are difference between Iterator and ListIterator?

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Posted on Feb 2, 2019 by Rajesh Kumar

What StringBuilder method in java used?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How we can use underscore in numeric lithrals in java 7?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the String inside switch feature of java 7?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to use StringBulider method in java give example,and how to create it?.

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the multi-catch feature of java 7?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between Iterator and Enumeration ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is an Iterator ?

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Posted on Feb 2, 2019 by Rajesh Kumar

How do you traverse through a collection using its Iterator?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to obtain Array from an ArrayList ?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is the difference between Comparable and Comparator Interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between HashMap and HashSet?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is difference between fail-fast and fail-safe?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to make a collection read only?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the NIO.2 feature of java 7 new IO API?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is Garbage Collection in Java?

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the purpose of finalize() method in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why we override equals() method in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is legacy class in java ?

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Posted on Feb 2, 2019 by Rajesh Kumar

Why we use Map interface? What are main classes implementing Map interface?

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of ArrayList in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of LinkedList in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of ListIterator Interface in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of HashSet class in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of TreeSet class in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of Sorting the elements in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of PriorityQueue in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of HashMap class in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of LinkedHashMap class in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Simple Example of TreeMap class in Java .

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Posted on Feb 2, 2019 by Rajesh Kumar

Which HTTP method is non-idempotent?

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Posted on Feb 2, 2019 by Rajesh Kumar

Which HTTP method is non-idempotent?

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Posted on Feb 2, 2019 by Rajesh Kumar

What is I/O in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How do I write text to a file?

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Posted on Feb 2, 2019 by Rajesh Kumar

how to set file permissions in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

What is FileInputStream and FileOutputStream in java explain?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How many ways can we read data from the keyboard?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to delete temporary file in java?

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Posted on Feb 2, 2019 by Rajesh Kumar

How to create temporary file in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to get list of all files from a folder in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to Filter the files by file extensions and show the file names in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to Filter the files by file extensions and show the file names in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to Filter the files by file extensions and show the file names in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to compress and uncompress the data of a file in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to create and store property file dynamically in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to store and read objects from a file in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

what is the diffrence b/w io and nio in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to read file content using byte array in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to get file URI reference in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to get file URI reference in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to get file last modified time in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to Write file handling program to copy characters from one file to another in java?.

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Posted on Feb 2, 2019 by Rajesh Kumar

How to count number of characters in a file in java

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Posted on Feb 2, 2019 by Rajesh Kumar
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