ColorSelect.java

package JUnittasks;

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

public class ColorSelect extends JFrame {
    private final JComboBox<String> colorBox;
    private static final String[] colorNames =
            {"RED", "BLUE", "YELLOW"};
    private final JCheckBox background;
    private final JCheckBox foreground;
    private final JButton ok, cancel;

    public ColorSelect () {
        super("ColorSelect");
        setLayout(new FlowLayout());

        colorBox = new JComboBox<String>(colorNames);
        colorBox.setPreferredSize(new Dimension(230,20));
        colorBox.setMaximumRowCount(3);
        add(colorBox);

        background = new JCheckBox("Background");
        add(background);
        foreground = new JCheckBox("Foreground");
        add(foreground);

        ok = new JButton("Ok");
        add(ok);
        cancel = new JButton("Cancel");
        add(cancel);

}
    public static void main(String[] args) {
        ColorSelect colorSelect = new ColorSelect();
        colorSelect.setSize(250, 150);
        colorSelect.setResizable(false);
        colorSelect.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        colorSelect.setVisible(true);
        colorSelect.setLocationRelativeTo(null);
    }
}