Question

用java怎么编写一个图形界面应用程序,其中包含一个按钮。当鼠标移到按钮上时,隐藏按钮

希望把代码写下，思路我也知道，就是不知道怎么写，可以的话最好用awt包下的....swing包下的弄得不是很清楚

Answer 1

import javax.swing.JFrame;
import java.awt.Dimension;
import javax.swing.JPanel;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import java.awt.Rectangle;

public class HideButton extends JFrame {

private JPanel jPanel = null;
private JButton jButton = null;

/**
* This method initializes
*
*/
public HideButton() {
super();
initialize();
}

/**
* This method initializes this
*
*/
private void initialize() {
this.setSize(new Dimension(239, 129));
this.setContentPane(getJPanel());
this.setVisible(true);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}

/**
* This method initializes jPanel
*
* @return javax.swing.JPanel
*/
private JPanel getJPanel() {
if (jPanel == null) {
jPanel = new JPanel();
jPanel.setLayout(null);
jPanel.add(getJButton(), null);
}
return jPanel;
}

/**
* This method initializes jButton
*
* @return javax.swing.JButton
*/
private JButton getJButton() {
if (jButton == null) {
jButton = new JButton();
jButton.setBounds(new Rectangle(72, 29, 109, 39));
jButton.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent e) {
jButton.setVisible(false);
}
public void mouseExited(java.awt.event.MouseEvent e) {
jButton.setVisible(true);
}
});
}
return jButton;
}
public static void main(String args[]){
new HideButton().setVisible(true);
}
}

Answer 2

给Button添加一个MouseListener，并实现void mouseEntered(MouseEvent e)这个方法，在这个方法中调用Button的setVisible(false)方法就可以了。

Answer 3

拿netbeans里面的图形界面工具拖 增加一个事件就可以了