import awb.*;
import java.awt.*;

public class DiaParms extends java.applet.Applet
{
    IntField gSize;
    TextArea ta;
    String stars = "*******************";
    String spaces = "          ";
    int k;
    
    public void init()
    {   
        gSize = new IntField(10);
        ta = new TextArea(20, 20);
        add(gSize);
        add(ta);
    }
    
    void Dia(int sz)
    {
    
        k = 0;
        while (k < sz)
        {
               
            ta.appendText(spaces.substring(0,10-k) + 
                      stars.substring(0,2*k+1)+"\n");
            k = k + 1;
        }
    }
    
    void Mond(int sz)
    {
        k = sz;
        while (k > 0)
        {             
            k = k - 1;
            ta.appendText(spaces.substring(0,10-k) + 
                      stars.substring(0,2*k+1)+"\n");
        }
    }
    
    public boolean action(Event e, Object arg)
    {
	int sz;

        if (e.target == gSize)
        {
            sz = gSize.getInt();
            Dia(sz);    
            Mond(sz-1);
            return true;
        }
        return false;
    }
}