Error using Timer class, need simple way to make a countdown timer

Question

I used the java 7 class documentation exactly as it is written here . Am I doing something wrong? I am trying to write a timer to count down from 10 to 0 and display the timer numbers as it counts down. My intelliJ tells me that when I create a new Timer class and pass in the constructors for delay and taskPreformer that

Timer java.lang.String, boolean in timer cannot be applied to int java.awt.event.ActiveListener.

    int delay = 1000; // milliseconds
    ActionListener taskPerformer = new ActionListener() {
        int count = 10;

        public void actionPerformed(ActionEvent evt) {
            if (count > 0) {
                count--;
            }
        }
    };

    new Timer(delay, taskPerformer).start();

Answer 1

You have imported the wrong Timer . There's a java.util.Timer with arguments (String, boolean) which is not the Timer you want. The timer you want is the javax.swing.Timer , which does have the arguments (int, ActionListener) . So fix the imports

//import java.util.Timer;  <-- take out
import javax.swing.Timer;

Also, you may want some stopping condition for the timer to stop. Maybe something like

if (count > 0) {
    count--;
} else {
    ((Timer)evt.getSource()).stop();
}