Display Image to another window using JRadioButton

Program Description:

The Java Program below is an answer to the question I read from one of the comments in PlanetCodes. The program demonstrates how to display image to another window using JRadioButton. In this problem, I have created two Java programs the "mainInterface.java" where the JRadioButtons are placed and the "displayInterface.java" which is used to display the images.

Output:

Code:

Main Interface

/**

 * File: mainInterface.java

 * Tiltle: Display Image to another window using JRadioButton

 * Author: http://java-code-complete.blogspot.com

 */



//Java Core Package

import javax.swing.*;

//Java Extension Package

import java.awt.*;

import java.awt.event.*;



public class mainInterface extends JFrame {

	

	//Intializing JPanel, JRadioButton, and the class Icon

	private JRadioButton orc, warrior, mage;

	private JPanel panel;

	private Icon orcsImage, warriorImage, mageImage;

	

	//Calling the class "displayInterface" to link the two java programs

	private displayInterface di;

	

	//Setting up GUI

    public mainInterface() {

    	

    	//Setting up the Title of the Window

    	super("Main Interface");



    	//Set Size of the Window (WIDTH, HEIGHT)

    	setSize(200,200);



    	//Exit Property of the Window

    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    	

    	//Constructing the class Icon

    	orcsImage = new ImageIcon("orcs.jpg");

    	warriorImage = new ImageIcon("warrior.jpg");

    	mageImage = new ImageIcon("mage.jpg");

		

		//Constructing JRadioButton

    	orc = new JRadioButton("Orc",false);

    	warrior = new JRadioButton("Warrior",false);

    	mage = new JRadioButton("Mage",false);

    	

    	//Register Events for JRadioButton

    	RadioButtonHandler handler = new RadioButtonHandler();

    	orc.addItemListener(handler);

    	warrior.addItemListener(handler);

    	mage.addItemListener(handler);

    	

    	//Group the Radio Buttons using the class ButtonGroup

    	ButtonGroup group = new ButtonGroup();

    	group.add(orc);

    	group.add(warrior);

    	group.add(mage);

    	

    	//Constructing JPanel

    	panel = new JPanel();

    	panel.setLayout(new GridLayout(3,1)); //Setting layout on JPanel

    	panel.setBorder(BorderFactory.createTitledBorder("Select an Image")); //Create a titled border on JPanel

    	

    	//Adding JRadioButton on JPanel

    	panel.add(orc);

    	panel.add(warrior);

    	panel.add(mage);



    	//Setting up the container ready for the components to be added.

    	Container pane = getContentPane();

    	setContentPane(pane);

		

		//Adding the JPanel in the container

    	pane.add(panel);



    	/**Set all the Components Visible.

    	 * If it is set to "false", the components in the container will not be visible.

    	 */

    	setVisible(true);

    	setResizable(false); //Set the window to a permanent size

    	setLocation(550,200); //Set the window to a specific location (X Axis, Y Axis)

    	

    }

    

	//Main Method

    public static void main (String[] args) {

    	mainInterface mi = new mainInterface();

	}

	

	//Private Inner class to handle radio button event

	public class RadioButtonHandler implements ItemListener {

		

		//handle radio button event

		public void itemStateChanged(ItemEvent event) {

			

			di = new displayInterface(); //Constructing the class "displayInterface" in order to link the two java program

			

			if(event.getSource() == orc) //Checking what radio button is clicked

				if (event.getStateChange() == ItemEvent.SELECTED) //Tracking if the radio button is selected or deselected

				di.image.setIcon(orcsImage); //if it is checked then the image will be displayed from another window

				else

				di.dispose(); //if not then dispose the window where the image is displayed.

				

				/** You have to remember that radio button has two actions, the "SELECTED" and "DESELECTED".

				 *	The reason why I put another "if condition" and the method "dispose()" is to prevent from displaying

				 *	two windows at the same time when you click any of the radio buttons. Without these functions, the radio 

				 *	button will display images everytime it is "selected" or "deselected".

				 */

			

			if(event.getSource() == warrior)

				if (event.getStateChange() == ItemEvent.SELECTED)

				di.image.setIcon(warriorImage);

				else

				di.dispose();

			

			if(event.getSource() == mage)

				if (event.getStateChange() == ItemEvent.SELECTED)

				di.image.setIcon(mageImage);

				else

				di.dispose();

		}

	}

}

Display Interface

/**

 * File: displayInterface.java

 * Tiltle: Display Image to another window using JRadioButton

 * Author: http://java-code-complete.blogspot.com

 */



//Java Core Package

import javax.swing.*;

//Java Extension Package

import java.awt.*;



public class displayInterface extends JFrame {

	

	//Initializing JLabel

	JLabel image;



	//Setting up GUI

    public displayInterface() {

    	

    	//Setting up the Title of the Window

    	super("Display Interface");



    	//Set Size of the Window (WIDTH, HEIGHT)

    	setSize(265,265);



    	//Exit Property of the Window

    	setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

    	    	

    	//Constructing JLabel

    	image = new JLabel();



    	//Setting up the container ready for the components to be added.

    	Container pane = getContentPane();

    	setContentPane(pane);

		

		//Setting up the container layout

    	FlowLayout flow = new FlowLayout(FlowLayout.CENTER);

    	pane.setLayout(flow);

    	

    	//Adding JLabel in the container

    	pane.add(image);



    	/**Set all the Components Visible.

    	 * If it is set to "false", the components in the container will not be visible.

    	 */

    	setVisible(true);

    	setResizable(false); //Set the window to a permanent size

    	setLocation(285,200); //Set the window to a specific location (X Axis, Y Axis)

    }

    

	//Main Method

    public static void main (String[] args) {

    	displayInterface di = new displayInterface();

	}

}

Required Image(s):