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

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

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

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JAVA Threads
Given the code. What will be the result?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"); }}

"BeginEndRun" is printed.
Compilation fails.
An exception is thrown at runtime.
"BeginRunEnd" is printed.
"BeginEnd" is printed.

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