JOptionPane showOptionDialog Code Example

JOptionPane showOptionDialog Code Example

Unlike other JOptionPanes, i.e., showMessageDialog and showInputDialog, JOption showOptionDialog is pretty easy and straight forward.

 Simple JOption showOptionDialog

Execute below code.

[

import javax.swing.JOptionPane;

public class ShowOptionDialog {

    public static void main(String args[])
    {
        handleQuit();

    }
    public static void handleQuit()
    {
        int choice=JOptionPane.showOptionDialog(null, "Do you want to close system",

"Close System",JOptionPane.YES_NO_OPTION,null, null, null);
        if(choice==JOptionPane.YES_NO_OPTION)
        {
            System.exit(0);
        }
    }


}

]

Code Analysis

Above code does a simple task.Method handQuit() has an Option JOptionPane that pops up requesting user if to exit the program.If the user clicks YES option, the program is exited using System.exit(0) method

Adding ImageIcon to JOptionPane.showOptionDialog

[

import javax.swing.JOptionPane;
import javax.swing.ImageIcon;

/** * * @author acer */public class ShowOptionDialog {

    public static void main(String args[])
    {
        handleQuit();

    }
    public static void handleQuit()
    {
        int choice=JOptionPane.showOptionDialog(null, "Do you want to close system","Close System",
                JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE,new ImageIcon(ShowOptionDialog.class.getResource("server.jpg")), null, null);
        if(choice==JOptionPane.YES_NO_OPTION)
        {
            System.exit(0);
        }
    }


}

]

Output

new ImageIcon(ShowOptionDialog.class.getResource("server.jpg")) code adds icon to the Option dialog 

How to control  JOptionPane showOptionDialog Prompts

Below code shows how you can control dialog options.

[

import javax.swing.JOptionPane;
import javax.swing.ImageIcon;

/** * * @author acer */public class ShowOptionDialog {

    public static void main(String args[])
    {
        handleQuit();

    }
    public static void handleQuit()
    {
        Object [] options={"Okay","Cancel"};
        int choice=JOptionPane.showOptionDialog(null, "Do you want to close system","Close System",
                JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE,

new ImageIcon(ShowOptionDialog.class.getResource("server.jpg")), options, options[0]);
        if(choice==JOptionPane.YES_OPTION)
        {
            System.exit(0);
        }
    }


}

]

Above code remains the same.We have just introduced options.By setting options[0] ,Okay option is selected by default.Striking enter button will return Okay

See also:

JOptionPane showInputDialog Java Examples

JOptionPane showMessageDialog JavaExamples