Benjamin Banerjee :
I am trying to create a game and have come across a bizarre issue with the way I choose to run my Threads
The way I have it set up is that each pertinent class has a Thread Object, who's run() function runs the code once. Each is called once every frame.
However whenever I try to run the code I get a java.lang.IllegalThreadStateException and I have no clue why.
Here's an adaptation of the problematic code:
public class Test {
public static void main(String[] args) {
while(true) {
ThreadA.run(args);
ThreadB.run(args);
}
}
private static class ThreadA {
private static Thread thread = new Thread() {
@Override
public void run() {
System.out.println("A");
}
};
public static void run(String[] args) {
thread.start();
}
}
private static class ThreadB {
private static Thread thread = new Thread() {
@Override
public void run() {
System.out.println("B");
}
};
public static void run(String[] args) {
thread.start();
}
}
}
sleepToken :
The problem is here:
while(true) {
ThreadA.run(args);
ThreadB.run(args);
}
This will loop infinitely. It is never legal to start a thread more than once - even if it has completed. thread.isAlive() won't help you here - if you want to run it again, make a new instance.