MainClass.java 721 Bytes
package tp2.exo1;


import javax.swing.*;
import java.awt.*;

public class MainClass {
    public static void main(String[] args) {
        JFrame win = new JFrame();

        win.setSize( 500, 400);
        win.setLocationRelativeTo(null);

        JLabel label = new JLabel("0");

        win.add(label, BorderLayout.NORTH);

        JButton incbutt = new JButton("incrémenter");
        incbutt.addActionListener(e -> {
            int t = Integer.parseInt(label.getText());
            label.setText(Integer.toString(t+1));
        });

        win.add(incbutt, BorderLayout.SOUTH);

        win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        win.setResizable(false);
        win.setVisible(true);
    }
}