JAVA Threads
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); }}

Prints
Prints
Compiler error
IllegalThreadStateException is thrown
Prints

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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. }

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

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JAVA Threads
What will happen when you attempt to compile and run the following code?1. public class Test extends Thread{2. public static void main(String argv[]){3. Test t = new Test();4. t.run();5. t.start();6. }7. public void run(){8. System.out.println("run-test");9. }10. }

run-test run-test
None of these
Compilation fails due to an error on line 7
Compilation fails due to an error on line 4
run-test

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JAVA Threads
Analyze the following code:public class Test implements Runnable{ public static void main(String[] args){ Test t = new Test(); } public Test(){ Thread t = new Thread(this); t.start(); } public void run(){ System.out.println("test"); }}

The program compiles and runs and displays test.
The program compiles and runs and displays nothing.
The program has a compilation error because t is defined in both the main() method and the constructor Test().
The program compiles fine, but it does not run because you cannot use the keyword this in the constructor.

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JAVA Threads
What notifyAll() method do?

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

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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. }

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

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