Following example demonstrates how to check a thread is alive or not by extending Threda class and using currentThread() method.
public class TwoThreadAlive extends Thread {
public void run() {
for (int i = 0; i < 10; i++) {
printMsg();
}
}
public void printMsg() {
Thread t = Thread.currentThread();
String name = t.getName();
System.out.println("name=" + name);
}
public static void main(String[] args) {
TwoThreadAlive tt = new TwoThreadAlive();
tt.setName("Thread");
System.out.println("before start(),
tt.isAlive()=" + tt.isAlive());
tt.start();
System.out.println("just after start(),
tt.isAlive()=" + tt.isAlive());
for (int i = 0; i < 10; i++) {
tt.printMsg();
}
System.out.println("The end of main(),
tt.isAlive()=" + tt.isAlive());
}
}
Result:
The above code sample will produce the following result.
before start(),tt.isAlive()=false
just after start(), tt.isAlive()=true
name=main
name=main
name=main
name=main
name=main
name=Thread
name=Thread
name=Thread
name=Thread
name=Thread
name=Thread
name=Thread
name=main
name=main
The end of main().tt.isAlive()=false