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

native
final
synchronized
static
volatile

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JAVA Threads
What is the output for the below code ?class A implements Runnable{ public void run(){ System.out.println(Thread.currentThread().getName()); }}1. public class Test{2. public static void main(String... args){3. A a = new A();4. Thread t = new Thread(a);5. t.setName("good");6. t.start();7. }8. }

good
null
Compilation succeed but Runtime Exception
Compilation fails with an error at line 5
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
Wakes up all threads that are not waiting on this object's monitor
None of these
Wakes up one threads that are waiting on this object's monitor

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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(); }}

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

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