import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Joonis2 extends JApplet implements ActionListener{
   int laius=40;
   JTextField tfLaius=new JTextField(String.valueOf(laius));
   public Joonis2(){
     add(tfLaius, BorderLayout.SOUTH);
	 tfLaius.addActionListener(this);
   }
   public void actionPerformed(ActionEvent e){
     laius=Integer.parseInt(tfLaius.getText());
	 repaint();
   }
   public void paint(Graphics g){
     super.paint(g); //Puhastab platsi
     g.drawRect(10, 20, laius, 30); 
   }
   public static void main(String[] arg){
      JFrame f=new JFrame("Joonis");
	  f.setSize(400, 300);
	  f.getContentPane().add(new Joonis2());
	  f.setVisible(true);
	  f.setDefaultCloseOperation(
	    JFrame.EXIT_ON_CLOSE);
   }
}