📄 copy.java
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import java.awt.*;
import javax.swing.*;
public class copy extends JFrame {
public copy (){
super("复制图形");
setSize(280,250);
setVisible(true);
}
public void paint( Graphics g ){
super.paint(g);
g.setColor( Color.GREEN);
g.fill3DRect( 110, 110, 50, 50,false);
g.copyArea(110,110,60,60,70,0);
g.copyArea(110,110,60,60,-70,0);
g.copyArea(110,110,60,60,0,-70);
g.copyArea(110,110,60,60,0,70);
}
public static void main(String args[]){
copy app = new copy ();
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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