Question

用java编写绘图工具的代码

编出的绘图工具有windows系统中画图的基本功能 请教高手制作
如果编出的工具功能齐全 可以加高悬赏分

Answer 1

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class ResponseToMouse extends Applet implements ActionListener,MouseListener,MouseMotionListener
{
int xPos,yPos,k=0;
Button btnDraw,btnClean,btnErase;
public void init()
{
btnDraw = new Button("画图");
btnClean = new Button("清屏");
btnErase = new Button("擦除");
add(btnDraw);
add(btnClean);
add(btnErase);
btnDraw.addActionListener(this);
btnClean.addActionListener(this);
btnErase.addActionListener(this);
addMouseListener(this);
addMouseMotionListener(this);
}
public void paint(Graphics g)
{
if(k==1)
{
g.setColor(Color.red);
g.fillOval(xPos-5,yPos-5,10,10);
}
if(k==2)
{
super.update(g);
}
if(k==3)
{
g.setColor(Color.white);
g.fillOval(xPos-5,yPos-5,10,10);
}
}
public void actionPerformed(ActionEvent e){
if (e.getSource()==btnDraw)
k=1;
if(e.getSource()==btnClean){
k=2;
repaint();
}
if(e.getSource()==btnErase)
k=3;
}
public void mouseClicked(MouseEvent e)
{

}
public void mousePressed(MouseEvent e)
{
showStatus("鼠标键按下");
}
public void mouseReleased(MouseEvent e)
{
showStatus("鼠标键释放");
}
public void mouseEntered(MouseEvent e)
{
showStatus("鼠标进入");
}
public void mouseExited(MouseEvent e)
{
showStatus("鼠标移出");
}
public void mouseDragged(MouseEvent e)
{
xPos=e.getX();
yPos=e.getY();
repaint();

}
public void mouseMoved(MouseEvent e)
{
showStatus("鼠标移动");
}
public void update(Graphics g){
paint(g);
}
}

Answer 2

这个需要点时间。多久要？我到时写好了给你！最近工作有点忙！