how to set file permissions in java?.

package javatest.file;

import java.io.File;

import java.io.IOException;

public class FilePermissionExample

{

public static void main( String[] args )

{

try {

File file = new File("/javatest/myjava.td");

if(file.exists()){

System.out.println("Is Execute allow : " + file.canExecute());

System.out.println("Is Write allow : " + file.canWrite());

System.out.println("Is Read allow : " + file.canRead());

}

file.setExecutable(false);

file.setReadable(false);

file.setWritable(false);

System.out.println("Is Execute allow : " + file.canExecute());

System.out.println("Is Write allow : " + file.canWrite());

System.out.println("Is Read allow : " + file.canRead());

if (file.createNewFile()){

System.out.println("new File is created!");

}else{

System.out.println("this File already exists.");

}

} catch (IOException e) {

e.printStackTrace();}}}