e7_4.java

来自「java 初学者学习实例」· Java 代码 · 共 23 行

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class E7_4 extends Applet implements MouseMotionListener
{ TextField text;
 public void init()
  { text=new TextField();
     setLayout(new BorderLayout());
      setBackground(Color.green);
     addMouseMotionListener(this); add(text,"South");
	
  }
 public void mouseDragged(MouseEvent e)
  {text.setBackground(Color.red);
    text. setText ( "鼠标的坐标：" +"("+e.getX() +" , "+e. getY () +" ) ");
	 setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
  }
 public void mouseMoved(MouseEvent e)
  {text.setBackground(Color.blue);
    text. setText ("鼠标的坐标： "+" ( "+e. getX () +" , "+e. getY () + ")");
	setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
  }
}