PIbd-23_Polevoy_S.V._SelfPropelledArtilleryUnit_Hard/Program.java

import javax.swing.*;

public class Program {
    public static void main(String[] args) {
        FormMap form = new FormMap();
        form.setSize(640, 480);
        form.setVisible(true);
        form.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
}