How to use Java JColorChooser

How to use Java JColorChooser

The primary use of  Java JColorChooser is to create a dialog box that allows the user to select different colors.This JColorChooser class inherits  JComponent class.

How to declare   Java JColorChooser class

[class JColorChooser extends JComponent implements Accessible
  

]

Java JColorChooser  constructors

• JColorChooser()-creates a color panel with white as default.
• JColorChooser(Color color)-creates a color panel with the initial color specified.

Java JColorChooser   Methods

• void addChooserPanel(AbstractColorChooserPanel panel)-adds color chooser panel to a color chooser.
• static Color showDialog(Component c,String t,Color color)-shows color  chooser dialog.

Java JColorChooser Example

[

import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JColorChooser;

import java.awt.Color;

public class JavaJColorChooser extends JFrame {

    JavaJColorChooser()
    {

        super("Color chooser example");
        Color color=Color.CYAN;
        JColorChooser.showDialog(this, "Java JColorChooser Example", color);



        setSize(300,300);
        setLayout(null);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }
    public static void main(String args[])
    {
        new JavaJColorChooser();
    }
}

]

Java JColorChooser  Example with ActionListener

[

import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Color;
import java.awt.Container;
public class JavaJColorChooser extends JFrame {
    public JButton b;
    JavaJColorChooser()
    {

        super("Color chooser example");
        b=new JButton("Color");
        b.setBounds(10,10,100,30);
        add(b);
        //code to create JColorChooser Dialog Box       

 b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent evt)
            {
                Color initial=Color.BLUE;
                Color color=JColorChooser.showDialog(null, "Choose Color ", initial);
                b.setBackground(color);
            }

        });


        setSize(300,300);
        setLayout(null);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }
    public static void main(String args[])
    {
        new JavaJColorChooser();
    }
}

]

Lessons to Learn in this tutorial

JFrame class has several methods.These include.

• [ setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);]-exits JFrame window on close button click.
• [ setSize(300,300);]
• [  setLocationRelativeTo(null);]-positions the window at the center of the screen.

Other Swing component used is this tutorial is JButton Class. Read more about adding ActionListener to JButton

Related Tutorials:

• JOptionPane Examples

• JList Examples