JAVA Threads
Which keyword when applied on a method indicates that only one thread should execute the method at a time.

final
native
synchronized
static
volatile

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JAVA Threads
What notifyAll() method do?

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

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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 implement the run() method.
The program will not compile because it does not contain abstract methods.

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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. }

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

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JAVA Threads
What will be the output after compiling and executing the following code?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.
"BeginEnd" is printed.
An exception is thrown at runtime.
"BeginRunEnd" is printed.
Compilation fails.

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