java swing mouse enter
时间: 2023-09-08 16:11:32 浏览: 42
In Java Swing, the mouse enter event is triggered when the mouse pointer enters a component's boundaries. To handle this event, you can add a MouseListener to the component, and implement the mouseEntered() method.
Here's an example:
```
JButton button = new JButton("Click me!");
button.addMouseListener(new MouseAdapter() {
public void mouseEntered(MouseEvent e) {
// Do something when the mouse enters the button
button.setText("Hovering over me!");
}
});
```
In this example, we add a MouseListener to a JButton. When the mouse enters the button, the mouseEntered() method is called, and we update the button's text to indicate that the user is hovering over it.
You can use this same approach to handle mouse enter events for other Swing components, such as JLabel, JPanel, etc.