Which of the following statements are correct?A switch statement can act on numerical as well as Boolean types. A switch statement can act on characters, strings and enumerations types. We cannot declare variables within a case statement if it is not enclosed by { }. The foreach statement is used to iterate through the collection to get the desired information and should be used to change the contents of the collection to avoid unpredictable side effects. All of the expressions of the for statement are not optional.

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Question:
 
Which of the following statements are correct?A switch statement can act on numerical as well as Boolean types.
A switch statement can act on characters, strings and enumerations types.
We cannot declare variables within a case statement if it is not enclosed by { }.
The foreach statement is used to iterate through the collection to get the desired information and should be used to change the contents of the collection to avoid unpredictable side effects.
All of the expressions of the for statement are not optional.

1.1,2

2.2,3

3.3,5

4.4,5

More MCQS Questions and answers

  1. Which of the following can be used to terminate a while loop and transfer control outside the loop?exit while continue exit statement break goto
  2. Which of the following statements are correct?A switch statement can act on numerical as well as Boolean types. A switch statement can act on characters, strings and enumerations types. We cannot declare variables within a case statement if it is not enclosed by { }. The foreach statement is used to iterate through the collection to get the desired information and should be used to change the contents of the collection to avoid unpredictable side effects. All of the expressions of the for statement are not optional.
  3. Which of the following statements is correct about the C#.NET code snippet given below?switch (id) { case 6: grp = "Grp B"; break; case 13: grp = "Grp D"; break; case 1: grp = "Grp A"; break; case ls > 20: grp = "Grp E"; break ; case Else: grp = "Grp F"; break; }
  4. "What does the following C#.NET code snippet will print?int i = 0, j = 0; label: i++; j+=i; if (i < 10) { Console.Write(i +"" ""); goto label; }"
  5. The C#.NET code snippet given below generates ____ numbers series as output?int i = 1, j = 1, val; while (i < 25) { Console.Write(j + " "); val = i + j; j = i; i = val; }
  6. What is the output of the C#.NET code snippet given below?namespace IndiabixConsoleApplication { public enum color { red, green, blue }; class SampleProgram { static void Main (string[ ] args) { color c = color.blue; switch (c) { case color.red: Console.WriteLine(color.red); break; case color.green: Console.WriteLine(color.green); break; case color.blue: Console.WriteLine(color.blue); break; } } } }
  7. What will be the output of the C#.NET code snippet given below?char ch = Convert.ToChar ('a' | 'b' | 'c'); switch (ch) { case 'A': case 'a': Console.WriteLine ("case A | case a"); break; case 'B': case 'b': Console.WriteLine ("case B | case b"); break; case 'C': case 'c': case 'D': case 'd': Console.WriteLine ("case D | case d"); break; }
  8. What will be the output of the C#.NET code snippet given below?int i = 2, j = i; if (Convert.ToBoolean((i | j & 5) & (j - 25 * 1))) Console.WriteLine(1); else Console.WriteLine(0);
  9. What will be the output of the C#.NET code snippet given below?int val; for (val = -5; val <= 5; val++) { switch (val) { case 0: Console.Write ("India"); break; } if (val > 0) Console.Write ("B"); else if (val < 0) Console.Write ("X"); }
  10. What will be the output of the code snippet given below?int i; for(i = 0; i<=10; i++) { if(i == 4) { Console.Write(i + " "); continue; } else if (i != 4) Console.Write(i + " "); else break; }
  11. Which of the following is the correct output for the C#.NET program given below?int i = 20 ; for( ; ; ) { Console.Write(i + " "); if (i >= -10) i -= 4; else break;
  12. Which of the following statements are correct about the C#.NET code snippet given below?if (age > 18 && no < 11) a = 25; The condition no < 11 will be evaluated only if age > 18 evaluates to True. The statement a = 25 will get executed if any one condition is True. The condition no < 11 will be evaluated only if age > 18 evaluates to False. The statement a = 25 will get executed if both the conditions are True. && is known as a short circuiting logical operator.
  13. Which of the following statements are correct about the C#.NET code snippet given below?if (age > 18 || no < 11) a = 25; The condition no < 11 will get evaluated only if age > 18 evaluates to False. The condition no < 11 will get evaluated if age > 18 evaluates to True. The statement a = 25 will get evaluated if any one one of the two conditions is True. || is known as a short circuiting logical operator. The statement a = 25 will get evaluated only if both the conditions are True. A. B. 2, 4 C. 1, 3, 4 D. 2, 3, 5
  14. Which of the following statements are correct?The switch statement is a control statement that handles multiple selections and enumerations by passing control to one of the case statements within its body. The goto statement passes control to the next iteration of the enclosing iteration statement in which it appears. Branching is performed using jump statements which cause an immediate transfer of the program control. A common use of continue is to transfer control to a specific switch-case label or the default label in a switch statement. The do statement executes a statement or a block of statements enclosed in {} repeatedly until a specified expression evaluates to false.
  15. Which of the following statements is correct about the C#.NET code snippet given below?int i, j, id = 0; switch (id) { case i: Console.WriteLine("I am in Case i"); break; case j: Console.WriteLine("I am in Case j"); break; }
  16. Which of the following statements is correct?
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