Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Dimension;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main extends JPanel {
    Hue hue = Hue.values()[0];

    public Main() {
        setPreferredSize(new Dimension(320, 240));
        setBackground(hue.getColor());
        JComboBox colorBox = new JComboBox();
        for (Hue h : Hue.values()) {
            colorBox.addItem(h);
        }
        colorBox.addActionListener(e -> {
            Hue h = (Hue) colorBox.getSelectedItem();
            Main.this.setBackground(h.getColor());
        });
        this.add(colorBox);
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new Main());
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }
}

enum Hue {

    Cyan(Color.cyan), Magenta(Color.magenta), Yellow(Color.yellow), Red(Color.red), Green(Color.green), Blue(
            Color.blue);

    private final Color color;

    private Hue(Color color) {
        this.color = color;
    }

    public Color getColor() {
        return color;
    }
}