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

final
native
static
synchronized
volatile

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JAVA Threads
What will be the output of the following program code?public class Test implements Runnable{ public static void main(String[] args){ Thread t = new Thread(this); t.start(); } public void run(){ System.out.println("test"); }}

None of these
The program does not compile because this cannot be referenced in a static method.
The program compiles fine, but it does not print anything because t does not invoke the run() method
The program compiles and runs fine and displays test on the console.

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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. }

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

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