不知哪里错了，请高手指点

[flyfox425]

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Mouseevent extends Applet implements MouseListener{

String msg="来点我";
public void init(){
addMouseListener(this);
}
public boolean mouseEntered(Event e){
msg="鼠标进来";
repaint();
return true;
}
public boolean mouseExited(Event e){
msg="鼠标离开";
repaint();
return true;
}
public void mouseClicked(MouseEvent e){}
public void mouseReleased(MouseEvent e){}
public void mousePressed(MouseEvent e){}
public void paint(Graphics g){
g.setColor(Color.red);
g.setFont(new Font("Dialogs",0,40));
g.drawString(msg, 4, 60);
}

}

[craig_wolfdon]

整个程序啊

[xuzhenqinandy]

你不说报什么错，别人怎么看

[flyfox425]

是整个的程序
运行不了，好像没有main也不是没有appet什么的

[flyfox425]

是不是哪里不完整啊？

[WangXiaoMao]

这个是applet小程序。就没有main()函数的。 你写个HTML文件
里头加上<applet code="你的类名.class" >
</applet>
然后运行这个HTML文件看看

[flyfox425]

在eclipse里面运行的，需要写html文件吗？晕，我还没写过，。

[suxq126]

public void mouseEntered(MouseEvent e) {
msg = "鼠标进来";
repaint();
}

public void mouseExited(MouseEvent e) {
msg = "鼠标离开";
repaint();
}

Event-->MouseEvent
返回值为void

[flyfox425]

楼上的那种改法，小程序能运行，但是鼠标一移动进去就显示暂挂

[flyfox425]

Exception in thread "AWT-EventQueue-1" Exception in thread "AWT-EventQueue-1" java.lang.AbstractMethodError: MouseEvent.mouseExited(Ljava/awt/event/MouseEvent;)

[lanseliuying]

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Test extends Applet implements MouseListener{

String msg="来点我";
public void init(){
addMouseListener(this);
}
public void mouseEntered(MouseEvent e){
msg="鼠标进来";
repaint();
//return true;
}
public void mouseExited(MouseEvent e){
msg="鼠标离开";
repaint();
//return true;
}
public void mouseClicked(MouseEvent e){}
public void mouseReleased(MouseEvent e){}
public void mousePressed(MouseEvent e){}
public void paint(Graphics g){
g.setColor(Color.red);
g.setFont(new Font("Dialogs",0,40));
g.drawString(msg, 4, 60);
}

}

[flyfox425]

哈哈谢谢楼上，原来是名字有问题，不该叫做MouseEvent,另外就是void的问题。