What will happen after compiling and running following code? class A…

Question

What will happen after compiling and running following code? class A implements Runnable public void run() System.out.println("run-a"); public class Test public static void main(String... args) A a = new A(); Thread t =…

Accepted Answer

Option D. Compilation succeed but Runtime Exception. Answer & Solution Answer: Option D Solution: Once a thread has been started, it can never be started again. 2nd time t.start() throws java.lang.IllegalThreadStateException.

What will happen after compiling and running following code? class A implements Runnable public void run() System.out.println("run-a"); public class Test public static void main(String... args) A a = new A(); Thread t = new Thread(a); t.start(); t.start();

Solution