Java uses threads to enable the entire environment to be ________.

Which keyword is used by a class to implement an interface defined previously?

class GFG {

public static void main (String[] args) {

   String str=new String(100);

   System.out.print(Integer.parseInt(str,8));

}

}

Predict the output of the following Java code.

Predict the output of the following Java code:

public class Abekus

{

static char ch = 97;

public static void main(String[] args)

{

System.out.println(ch + ch + " " + ch);

}

}

What will be the output of the following Java code?

class MultithreadedProgramming

{

public static void main(String[] args)

{

Thread t = Thread.currentThread();

System.out.println(t);

}

}

Statement 1- IOException is thrown by the remover() method 

Statement 2- IllegalStateException is thrown by the remover() method

Statement 3- ObjectNotFoundExeception is thrown by the remover() method

Statement 4- SystemException is thrown by the remover() method

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> queue
= new LinkedBlockingQueue<String>(4);
queue.offer("h");
queue.offer("n");
queue.offer("o");
queue.offer("b");
System.out.println(queue);
}
}

import java.util.*;

    class result 

    {

        public static void main(String args[]) 

        {

            Hashtable obj = new Hashtable();

            obj.put("A", new Integer(3));

            obj.put("A", new Integer(3));

            obj.put("B", new Integer(2));

            obj.put("B", new Integer(2));

            obj.put("C", new Integer(8));

            obj.put("C", new Integer(8));

            obj.put("D", new Integer(9));

            obj.put("D", new Integer(9));

            obj.put("E", new Integer(4));

            obj.put("E", new Integer(4));

            obj.put("F", new Integer(6));

obj.clear();

            obj.put("F", new Integer(6));

            System.out.print(obj.size());

        }

    }