This is a tutorial in which we will going to create a program that has the JToggleButton Component using Java. The
JToggleButton is a button which implements of a two-state button; an on or off button.
So, now let's start this tutorial!
1. Open JCreator or NetBeans and make a java program with a file name of
jToggleButtonComponent.java.
2. Import the following packages:
import java.awt.event.*; // used to access the ActionEvent and ActionListener class
import javax.swing.*; // used to access the JFrame, JOptionPane, JToggleButton
3. Initialize your variable in your Main, variable
frame for creating JFrame, and variable
toggleBtn for JToggleButton.
4. Now, we will add an ActionListener to the toggle button. This trigger to have an ActionEvent when clicking the toggle button. Have this code below:
if (tBtn.isSelected()) {
} else {
}
}
});
As you have seen the code above, we have created again a JToggleButton having a variable named of
tBtn. We used the method
getSource to get the action out of the JToggleButton. When clicking the JToggleButton to determine if it's on or off, we will use
isSelected method. When we click first the toggle button, it will prompt to the user that the button is on using the JOptionPane. When clicking again the button, it will display that the button is off.
5. Now, add the JToggleButton variable to the frame using the default BorderLayout of north position of the getContentPane method. Lastly, set the size, visibility, and the close operation of the frame. Have this code below:
frame.getContentPane().add(toggleBtn, "North");
frame.
setDefaultCloseOperation(JFrame.
EXIT_ON_CLOSE); frame.setSize(300, 125);
frame.setVisible(true);
Output:
Here's the full code of this tutorial:
import java.awt.event.*; // used to access the ActionEvent and ActionListener class
import javax.swing.*; // used to access the JFrame, JOptionPane, JToggleButton
public class jToggleButtonComponent {
public static void main
(String[] args
) {
if (tBtn.isSelected()) {
} else {
}
}
});
frame.getContentPane().add(toggleBtn, "North");
frame.
setDefaultCloseOperation(JFrame.
EXIT_ON_CLOSE); frame.setSize(300, 125);
frame.setVisible(true);
}
}
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