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41.
Predict the output:
class A implements Runnable{
      public void run(){
            try{
                  for(int i=0;i<4;i++){
                        Thread.sleep(100);
                        System.out.println(Thread.currentThread().getName());
                  }
            }catch(InterruptedException e){
            }
      }
}

public class Test{
      public static void main(String argv[]) throws Exception{
            A a = new A();
            Thread t = new Thread(a, "A");
            Thread t1 = new Thread(a, "B");
            t.start();
            t.join();
            t1.start();
      }
}

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42.
What will be the output?
class A extends Thread{
      public void run(){
            for(int i=0; i<2; i++){
                  System.out.println(i);
            }
      }
}

public class Test{
      public static void main(String argv[]){
            Test t = new Test();
            t.check(new A(){});
      }
      public void check(A a){
            a.start();
      }
}

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43.
What will happen when you attempt to compile and run the following code?
class A implements Runnable{
      public void run(){
            System.out.println("run-A");
      }
}

public class Test{
      public static void main(String argv[]){
            A a = new A();
            Thread t = new Thread(a);
            System.out.println(t.isAlive());
            t.start();
            System.out.println(t.isAlive());
      }
}

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45.
What notifyAll() method do?

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46.
What is the output for the below code?
public class Test extends Thread{
      public static void main(String argv[]){
            Test t = new Test();
            t.run();
      }

      public void start(){
            for(int i = 0; i < 10; i++){
                  System.out.println("Value of i = " + i);
            }
      }
}

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48.
What is the output for the below code?
class A implements Runnable{
      public void run(){
            System.out.println(Thread.currentThread().getName());
      }
}

public class Test{		
      public static void main(String... args){	
            A a = new A();
       Thread t = new Thread(a);
       t.setName("good");
       t.start();
      }
}

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49.
Predict the output:
public class Test extends Thread{
      private int i;
      public void run(){
            i++;
      }

      public static void main(String[] args){
            Test a = new Test();
            a.run();
            System.out.print(a.i);
            a.start();
            System.out.print(a.i);
      }
}

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50.
What will be the output after compiling and executing the following code?
public class Test implements Runnable{
      public static void main(String[] args) throws InterruptedException{
            Thread a = new Thread(new Test());
            a.start();
            System.out.print("Begin");
            a.join();
            System.out.print("End");
      }
    
      public void run(){
            System.out.print("Run");
      }
}

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