Which keyword is used to define enumerated types in Java?

What is JUnit primarily used for?

What is the value of the following expression?

-4 + 1/2 + 2*-3 + 5.0

Runtime polymorphism feature in java is

 Any already defined method in java library can be defined again in the program with the different data type of parameters 

How can an object become serializable in Java?

Predict the output of the following Java code.

class Abekus {

public static void main(String[] args)

{

do

while (true);

System.out.printf("Amrit");

}

}

Deduce the output of the following code:

public class MyClass {

public static void main(String args[]) {

int x=10;

if(x==10)

    System.out.println("10");

else if (x==10)

    System.out.println("20");

else

    System.out.println("30");}

}

 public class output

    {

        public static void main(String args[])

        {

            Double i = new Double(400.56);  

            int a = i.intValue();

            System.out.print(a);

        }

    }

Predict the output of the following Java code:

import java.util.*;

import java.util.concurrent.LinkedBlockingQueue;

public class Abekus {

public static void main(String[] args)

throws IllegalStateException {

Queue<String> que = new LinkedBlockingQueue<String>(4);

que.offer("h");

que.offer("n");

try {

que.offer(null);

} catch (Exception e) {

System.out.println(e);

}

}

}