import java.awt.Container;
import javax.swing.*;
public class Wudi extends JApplet{
public void init(){
Container container=getContentPane();
JTextArea outputArea=new JTextArea();
container.add(outputArea);
int i,j;
String result;
result=\" \";
for(j=1;j<=10;j++) 
{for(i=1;i<=j;i++)
result+=\"*\";
}
outputArea.setText(result);
}
}