Predict the output of the following Java code.

Which method returns the elements of an Enum class?

class GFG {

public static void main (String[] args) {

   int b=~4;

   System.out.println(b);

}

}

What is the value of ‘E’  defined in Math class?

class test{

public static void main (String[] args) {

  int x = -4,y=4; 

       System.out.println(x>>2+" "+y<<1);   

}

}

Which of the following specifier must be used for class to make it able to be inherited by another subclass?

What is the output of the following code?

class Test

{

public static void main(String[] args)

{

int var1 = 5;

int var2 = 6;

if ((var2 = 1) == var1)

System.out.print(var2);

else

System.out.print(++var2);

}

}

What is serialization?

Would any Exception or Error occur when the program is executed?

public class program {

public static void main(String[] args) {

int a[] = {0,1,2,3,4};

int index = 0;

while (a[index]==index) {

System.out.println(a[index]);

 index++;

}

}

}