// programm millega saab lugeda viimast kirja

import java.io.*; 
import java.applet.*; 
import java.awt.*; 
import java.awt.event.*; 
import java.net.*; 
import java.util.*; 

public class Lugeja3aa extends Applet implements ActionListener 
{ 
  BufferedReader sisse;  
  String server; 
  String nimi; 
  String parool; 
  String rida; 
  int kirjadearv=0; 

  Label label1=new Label("Server:"); 
  TextField tf2=new TextField("lin2.tpu.ee"); 
  Label label2=new Label("Kasutajanimi:"); 
  TextField tf4=new TextField(); 
  Label label3=new Label("Parool:"); 
  TextField tf6=new TextField(); 
  Button b2=new Button("Sisene");
  TextArea ta1=new TextArea(); 
  Button b1=new Button("Välju"); 

public Lugeja3aa() 
{ 
  setLayout(null); 

  label1.setBounds(10,10,100,20); // (x, y, width, height) 
  tf2.setBounds(112,10,200,20); 
  label2.setBounds(10,35,100,20); 
  tf4.setBounds(112,35,200,20); 
  label3.setBounds(10,60,100,20); 
  tf6.setBounds(112,60,200,20); 
  b2.setBounds(260,87,50,24); 
  ta1.setBounds(10,190,570,350); 
  b1.setBounds(530,545,50,24);  

  add(label1); add(tf2); add(label2); add(tf4); add(label3); add(b2); add(tf6); 
  add(ta1); 
  add(b1); 

  tf6.setEchoChar('*'); // parooli sisestamiseks 
  tf2.addActionListener(this); 
  tf4.addActionListener(this); 
  tf6.addActionListener(this); 
  b1.addActionListener(this); 
  b2.addActionListener(this);  

} // end of public Lugeja 

//loetakse sisse server, kasutajanimi ja parool
public void actionPerformed(ActionEvent e) 
{ 
  PrintWriter valja; 

  if(e.getSource()==b2){ 
  try{ 
    server=tf2.getText().trim(); 
    nimi=tf4.getText().trim(); 
    parool=tf6.getText().trim(); 

// luuakse ühendus lugemiseks 
  Socket sc1=new Socket(server, 110); 
  sisse=new BufferedReader(new InputStreamReader(sc1.getInputStream())); 
  valja=new PrintWriter(sc1.getOutputStream(), true); 

  valja.println("user "+nimi); 
  valja.println("pass "+parool); 
  valja.println("list"); 

  String viimaneKirjaRida = ""; 
  rida=sisse.readLine(); 
  while(!rida.equals(".")){ 
    kirjadearv++; 
    System.out.println(rida); 
    viimaneKirjaRida = rida; 
    rida=sisse.readLine(); 
   } // end while kirjadearvu lugemiseks 

  if(kirjadearv > 0){ 
    System.out.println(viimaneKirjaRida ); 
    System.out.println("RETR "+ (new StringTokenizer(viimaneKirjaRida , " ")).nextToken()); 
	    valja.println("RETR "+ (new StringTokenizer(viimaneKirjaRida , " ")).nextToken()); 
    
    int reanr=0; 
    while(!(rida=sisse.readLine()).equals(".")){ 
      ta1.append(rida + "\n"); 
      reanr++; 
    } // end while kirja trükkimiseks 
  } // endif kirjanumbri teadasaamiseks 
  sc1.close(); 
  }catch(Exception viga){ 
    System.out.println(viga); 
  } 
} 
  if(e.getSource()==b1){ // väljumisnupp 
    System.exit(0); 
  } // endif 
} // end of public void actionPerformed 


// aken nähtavaks 
public static void main(String argumendid[]) throws Exception { 
	Frame f=new Frame("POSTKAST"); 
	f.setSize(600, 600); 
	f.setBackground(Color.LIGHT_GRAY); 
	f.add(new Lugeja3aa()); 
	f.setVisible(true); 

	f.addWindowListener( 
		new WindowAdapter(){ 
			public void windowClosing(WindowEvent e){ 
			System.exit(0); 
			} 
		} 
	); 
} // end of public static void main 

} // end of public class Lugeja 

// java.net.ConnectException: Connection refused: connect