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();
}
}
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();
}
}A. run-a
B. run-a run-a
C. Compilation fails with an error at line 6
D. Compilation succeed but Runtime Exception
E. None of these
Answer: Option D
Solution (By Examveda Team)
Once a thread has been started, it can never be started again. 2nd time t.start() throws java.lang.IllegalThreadStateException.
This Question Belongs to Java Program >> Threads
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