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. }

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

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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 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.
The program compiles and runs and displays nothing.

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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); } }}

None of these
A run time error indicating that no run method is defined for the Thread class
Clean compile and at run time the values 0 to 9 are printed out
Clean compile but no output at runtime
A compile time error indicating that no run method is defined for the Thread class

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

The program does not compile because this cannot be referenced in a static method.
The program compiles and runs fine and displays test on the console.
The program compiles fine, but it does not print anything because t does not invoke the run() method
None of these

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JAVA Threads
What notifyAll() method do?

Wakes up all threads that are waiting on this object's monitor
None of these
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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