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

synchronized
final
native
volatile
static

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JAVA Threads
What will be the output?class A extends Thread{ public void run(){ for(int i=0; i<2; i++){ System.out.println(i); } }}public class Test{ public static void main(String argv[]){ Test t = new Test(); t.check(new A(){}); } public void check(A a){ a.start(); }}

Compilation error, class A has no start method
0 1
None of these
0 0
Compilation succeed but runtime exception

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

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

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.
None of these
The program compiles fine.

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

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