Simple help for java lovers

Question

I can't find a simple condition to open frame after 20sec
https://code.sololearn.com/cmpwWnQ4N9iQ/?ref=app

Answer 1

https://code.sololearn.com/cmpwWnQ4N9iQ/?ref=app

Answer 2

Now works.. thanks for link Denise first time i see TimerTask..

Answer 3

Nebojsa Barac

Thanks for sharing your solution with the other Timer.

Answer 4

I work on some task and i need to use timer. Secund option is countdown where timer start on 20sec and when is 0 need to stop.. and open frame.. but tnx for this

Answer 5

Do you really have to use
import javax.swing.Timer;
?

There exist also java.util.Timer;

static JFrame f;
static long time = 20000;

in main:

f = new Frame();
f.setSize(300, 400);

TimerTask task = new TimerTask() {

@Override
public void run(){

f.setVisible(true);

}

};

Timer timer = new Timer();
timer.shedule(task, time);

Answer 6

About Timer/TimerTask:

https://www.baeldung.com/java-timer-and-timertask

Answer 7

Try this (in an IDE such as Eclipse):

import javax.swing.JFrame;

public class Main {

public static void main(String[] args) {

try {
Thread.sleep(20000); //This causes that this thread waits for 20s
} catch (InterruptedException e) {
e.printStackTrace();
}

JFrame f = new JFrame();
f.setBounds(100, 100, 600, 400);
f.setVisible(true);

}

}