Question

说我小程序未初始化，怎么回事，程序如下：

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class Mouse extends Applet implements MouseListener{
private int mouseX;
private int mouseY;
public void init(){
addMouseListener(this);
}
public void mousePressd(MouseEvent m){
mouseX=m.getX();
mouseY=m.getY();
repaint();
}
public void paint(Graphics g){
g.setColor(Color.blue);
g.drawLine(0,mouseY,200,mouseY);
g.drawLine(mouseX,0,mouseX,100);
}
public void mouseClicked(MouseEvent m){}
public void mouseEntered(MouseEvent m){}
public void mouseExited(MouseEvent m){}
public void mouseReleased(MouseEvent m){}
}

Answer 1

把public void mousePressd(MouseEvent m){　改成public void mousePressed(MouseEvent m){
即把Pressd 改成Pressed 就行了。