How to stop an event action when other event happen ?

Question

This is my first swing program
I want to design an application with two buttons,"start" and "stop"
Pressing "start" will start listing data
Pressing "stop" will stop listing data immediate
What should I do??
I try to use a flag like the following:
==============================
btnStartActionPerformed() {
while(1) {
if (loop_break) break;
btnStopActionPerformed() {
loop_break = true;
==============================
but btnStopActionPerformed() will not start until btnStartActionPerformed() is finished
What should I do?

Answer 1

I agree with the thread comment...
But if you are going to use a while loop, you can do this:
loop_break = false;
while(!loop_break) {
}But if you need to stop anywhere inside the loop, you need to use if statements to check that flag between every action the while loop contains. Otherwise, you're limited to breaking whenever you check the flag, of course, or as above, before the next loop iteration.