No, Once you have started a thread, it can not be started again. If you try to start thread again , it will throw IllegalThreadStateException
Lets understand with the help of example:
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package org.arpit.java2blog; class FirstThread extends Thread { public void run() { System.out.println("Thread is running"); } } public class StartThreadAgainMain { public static void main(String[] args) { FirstThread ft = new FirstThread(); ft.start(); ft.start(); } } |
When you run above program , you will get below output:
Thread is runningException in thread “main”
java.lang.IllegalThreadStateException
at java.lang.Thread.start(Thread.java:705)
at org.arpit.java2blog.StartThreadAgainMain.main(StartThreadAgainMain.java:16)
java.lang.IllegalThreadStateException
at java.lang.Thread.start(Thread.java:705)
at org.arpit.java2blog.StartThreadAgainMain.main(StartThreadAgainMain.java:16)
As you can see when we started thread twice, it threw IllegalThreadStateException.
If you try to start thread again , it will throw IllegalThreadStateException
You can go through core java interview questions for beginners and experienced for more such questions.
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