JAVA Threads
What will happen after compiling and running following code?class A implements Runnable{ public void run(){ System.out.println("run-a"); }}1. public class Test{2. public static void main(String... args){3. A a = new A();4. Thread t = new Thread(a);5. t.start();6. t.start();7. }8. }

run-a run-a
Compilation fails with an error at line 6
run-a
None of these
Compilation succeed but Runtime Exception

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JAVA Threads
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"); }}1. public class Test{2. public static void main(String argv[]){3. A a = new A();4. Thread t = new Thread(a);5. System.out.println(t.isAlive());6. t.start();7. System.out.println(t.isAlive());8. }9. }

Compilation fails due to an error on line 7
true run-A true
false run-A false
false run-A true
None of these

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JAVA Threads
What notifyAll() method do?

None of these
Wakes up all threads that are waiting on this object's monitor
Wakes up one threads that are waiting on this object's monitor
Wakes up all threads that are not waiting on this object's monitor

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

None of these
The program will not compile because it does not implement the run() method.
The program compiles fine.
The program will not compile because it does not contain abstract methods.

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