With this tutorial we are going to see how can you determine the number of clicks that a user performed over an object in a Java Desktop application. This is very useful when you want the user to have rich interaction with your application using his mouse. You can also add extra functionality according to how many clicks the user did with the mouse.
In short all you have to do in order to detect double or triple clicks is:
- Create a class that extends
MouseAdapter - Override
mouseClickedmethod in order to further customize the handling of that specific event. Now every time the user clicks a mouse button this method will be executed. - Use
MouseEvent.getClickCount()to get the calculated click count
Let’s take a look a the code:
package com.javacodegeeks.snippets.desktop;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Component;
import java.awt.Frame;
import java.awt.TextArea;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class ClickCounter {
public static void main(String[] args) {
// Create frame with specific title
Frame frame = new Frame("Example Frame");
// Create a component to add to the frame; in this case a text area with sample text
final TextArea textArea = new TextArea("Click button to handle mouse clicks...");
// Create a component to add to the frame; in this case a button
Component button = new Button("Click Me!!");
// Add a mouse listener to determine click counts
button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
if (evt.getClickCount() == 3) {
textArea.setText("Triple click");
} else if (evt.getClickCount() == 2) {
textArea.setText("Double click");
}
}
});
// Add the components to the frame; by default, the frame has a border layout
frame.add(textArea, BorderLayout.NORTH);
frame.add(button, BorderLayout.SOUTH);
// Show the frame
int width = 300;
int height = 300;
frame.setSize(width, height);
frame.setVisible(true);
}
}
This was an example on how to determine click count in Java Desktop Application.
