MainFrame.java

package jp.gedorinku.tamagobroken;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public final class MainFrame
        extends JFrame {

    public MainFrame() {
        setTitle("卵ブロークン");
        setResizable(false);
        setVisible(true);

        JPanel panel = new JPanel();
        panel.setLayout(null);
        panel.setBackground(Color.pink);

        add(panel);
    }
}