Question about JAVA Threads

Question

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();      }}

Accepted Answer

A A A A B B B B

Answer

None of these

Answer

Output order is not guaranteed

Answer

Compilation succeed but Runtime Exception

Answer

A B A B A B A B

JAVA Threads
What will be output of the following program code?public class Test implements Runnable{ public void run(){ System.out.print("go"); } public static void main(String arg[]) { Thread t = new Thread(new Test()); t.run(); t.run(); t.start(); }}

JAVA Threads
Which of the following constructor of class Thread is valid one?

JAVA Threads
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); } }}

JAVA Threads
What will be the output?class One extends Thread{public void run(){for(int i=0; i<2; i++){System.out.print(i);}}}public class Test{public static void main(String args[]){Test t = new Test();t.call(new One());} public void call(One o){o.start();}}

JAVA Threads
Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}

JAVA Threads

JAVA Threads What will be output of the following program code?public class Test implements Runnable{ public void run(){ System.out.print("go"); } public static void main(String arg[]) { Thread t = new Thread(new Test()); t.run(); t.run(); t.start(); }}

JAVA Threads Which of the following constructor of class Thread is valid one?

JAVA Threads 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); } }}

JAVA Threads What will be the output?class One extends Thread{public void run(){for(int i=0; i<2; i++){System.out.print(i);}}}public class Test{public static void main(String args[]){Test t = new Test();t.call(new One());} public void call(One o){o.start();}}

JAVA Threads Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}

JAVA Threads
What will be output of the following program code?public class Test implements Runnable{ public void run(){ System.out.print("go"); } public static void main(String arg[]) { Thread t = new Thread(new Test()); t.run(); t.run(); t.start(); }}

JAVA Threads
Which of the following constructor of class Thread is valid one?

JAVA Threads
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); } }}

JAVA Threads
What will be the output?class One extends Thread{public void run(){for(int i=0; i<2; i++){System.out.print(i);}}}public class Test{public static void main(String args[]){Test t = new Test();t.call(new One());} public void call(One o){o.start();}}

JAVA Threads
Analyze the following code:public abstract class Test implements Runnable{ public void doSomething() { };}