Java: Minuterie (attendre x secondes)

class runnable implements Runnable {
    private Object obj;
    public runnable(Object obj)
    {
        this.obj = obj;
    }
    public void run() {
        try {
            Thread.sleep(3000);
            this.obj.setText("");//right here just execute your method
        } catch (InterruptedException e) {
            //TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("Hello from a thread!"); //your code here
    }

}

public class Test {

    public static void main(String[] args){
        Object myObject;
        (new Thread(new runnable(myObject))).start();
    }
}

Vous pouvez lancer un autre thread pour gérer cela. Il suffit de faire votre traitement dans l'autre thread. Dormir pendant 3 secondes, puis désactivez la lbl.

Voici un exemple montrant comment cela fonctionne:

class runnable implements Runnable {
    Test test;
    public runnable(Test test)
    {
        this.test = test;
    }
    public void run() {
        try {
            Thread.sleep(3000);
            this.test.test = "test2";
        } catch (InterruptedException e) {
            //TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("Hello from a thread!");
    }

}

public class Test {
    public String test = "test";
    public static void main(String[] args) throws InterruptedException{
        Test test = new Test();
        System.out.println(test.test);
        (new Thread(new runnable(test))).start();
        Thread.sleep(4000);
        System.out.println(test.test);
    }
}

************************************************************UPDATE*************************************************************

class runnable implements Runnable {
Test test;
public runnable(Test test)
{
this.test = test;
}
public void run() {
try {
Thread.sleep(3000);
this.test.label.setText("This is a test.");
} catch (InterruptedException e) {
//TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("Hello from a thread!");
}
}
public class Test {
public String test = "test";
JLabel label = new JLabel("Test");
JFrame frame = new JFrame();
JButton button = new JButton();
public static void main(String[] args) throws InterruptedException{
Test test = new Test();
test.label.setText("Test");
test.button.setText("Test Button");
test.button.setSize(50, 50);
test.frame.setSize(500, 500);
test.frame.add(test.button);
test.frame.add(test.label);
test.frame.setVisible(true);
test.button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
//TODO Auto-generated method stub
System.exit(0);
}
});
(new Thread(new runnable(test))).start();
}
}

Pour ce faire, vous devrez utiliser filetage. Dans le cas où vous êtes en utilisant Swing vous pouvez utiliser un Swing Timer. Le code devrait ressembler à quelque chose comme ça. Mettez ce code là où vous êtes "sauver" le fichier.

  int delay = 3000; 
ActionListener taskPerformer = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
//Empty the label here. This code will be called once the timeout of three seconds has been passed
}
};
new Timer(delay, taskPerformer).start();

Vous ne pouvez pas interagir avec l'interface graphique car le code est de dormir dans l'event dispatch thread qui est responsable du traitement de GUI événements et il est donc bloqué. Utilisez cette Balançoire Minuterie à la place.

L'exemple donné, il est simple. - Je inclure les commentaires.

  int delay = 1000; //milliseconds
//Create action listener which listens for the event generated by the timer
ActionListener taskPerformer = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Place here code to execute when the time runs out.
}
};
//Simply create a timer with the created listener and start it.
new Timer(delay, taskPerformer).start();