java设计鼠标控制程序(如下图)。让程序运行时,如果在窗口中移动鼠标,窗口的底部将显示出鼠标当前的位置,如果移动鼠标的同时还按住Ctrl或Shift键,窗口底部还会显示出C或S,如果用户按下键盘上的键时,程序窗口的底部显示出字母D,当用户松开键盘上的键时,程序窗口底部会显示字母U。
时间: 2024-03-08 09:49:26 浏览: 9
以下是一个简单的Java代码示例,可以实现上述功能:
```java
import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class MouseControlProgram extends JFrame implements MouseMotionListener, KeyListener {
private static final long serialVersionUID = 1L;
private JPanel panel;
private JLabel label;
public MouseControlProgram() {
super("Mouse Control Program");
panel = new JPanel();
label = new JLabel("Move the mouse over this window");
panel.add(label);
add(panel, BorderLayout.CENTER);
addMouseMotionListener(this);
addKeyListener(this);
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
@Override
public void mouseMoved(MouseEvent e) {
int x = e.getX();
int y = e.getY();
String text = "Mouse position: " + x + "," + y;
if (e.isControlDown()) {
text += " C";
}
if (e.isShiftDown()) {
text += " S";
}
label.setText(text);
}
@Override
public void mouseDragged(MouseEvent e) {
mouseMoved(e);
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_D) {
label.setText("Key pressed: D");
}
}
@Override
public void keyReleased(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_D) {
label.setText("Key released: U");
}
}
@Override
public void keyTyped(KeyEvent e) {
// do nothing
}
public static void main(String[] args) {
new MouseControlProgram();
}
}
```
这个程序创建了一个窗口,当用户在窗口中移动鼠标时,会在窗口底部显示出当前鼠标的位置。如果同时按下Ctrl或Shift键,窗口底部会显示出C或S。如果用户按下键盘上的D键,窗口底部会显示出字母D,当松开D键时,窗口底部会显示出字母U。