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

native
final
synchronized
volatile
static

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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"); }}

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

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

None of these
The program will not compile because it does not implement the run() method.
The program compiles fine.
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 succeed but Runtime Exception
run-a
None of these
Compilation fails with an error at line 6
run-a run-a

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