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import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class ko12_2 extends Applet implements ActionListener
{
int n=1;
Image image1,image2;
Button bn=new Button("э跑瓜");
public void init()
{
add(bn);
image1=getImage(getCodeBase(),"ko12_2a.gif");
image2=getImage(getCodeBase(),"ko12_2b.gif");
bn.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
Graphics g=getGraphics();
if (e.getSource()==bn)
{
if (n%2==0)
{
g.drawImage(image1,0,0,this);
n++;
}
else
{
g.drawImage(image2,0,0,this);
n++;
}
}
}
}