See brauser ei suuda seda lehekülge avada

/**
*Lihtne veebisirvija, millega heal juhul näeb ka midagi
*@autjor Herki Suöa
*@since JDK1.3
*/
import java.net.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
public class BSR1{
  public static void main(String argumendid[]) throws IOException{
	final JFrame f=new JFrame("rama");
	final JLabel silt1=new JLabel("See seal üleval on aadressiväli. "+
											"Proovi mõnda weebileht vaadata");
	final JTextField urli=new JTextField("http://");
	silt1.setBackground(new Color(200,50,100));
	f.setSize(800,600);
	f.setTitle("BSR 1.0");
	f.getContentPane().add(urli,BorderLayout.NORTH);
	f.getContentPane().add(silt1,BorderLayout.CENTER);
	f.setVisible(true);
	urli.addActionListener(new ActionListener(){
		  public void actionPerformed(ActionEvent e){  
			try{		  
				PrintWriter logi=new PrintWriter(
					new FileWriter("logi.txt",true)
				);
			  	String aadress=urli.getText();
				logi.println(aadress);
				logi.close();		
   	 		BufferedReader sisse=new BufferedReader(
      			new InputStreamReader(new URL(aadress).openStream())
    			);
   	 		String rida=sisse.readLine();
	    		String html="";
    			while(rida!=null){
      			html=html+rida+"\n<br>";
      			rida=sisse.readLine();

    			}
	    		html=html.substring(html.lastIndexOf("<html>"),html.length());
	    		silt1.setText(html);


			}catch(Exception r){
				silt1.setText("<html><h1>See brauser ei suuda seda lehekülge avada</h1><p>.</html>"+
				  				  "\nProblem: "+r);
    		}
		  	}
   });
	f.addWindowListener(new WindowAdapter(){
    public void windowClosing(WindowEvent e){
         System.exit(0);
     }
    });  
      }
}