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);
}
}