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

public class week6b extends Applet implements ActionListener
{
  FileReader file;
  BufferedReader buff;
  boolean eof;

  private Button stopButton;
  private List klantNummerList, klantNaamList;
  public Label klantNummerLabel, klantNaamLabel;
  public String klantNummerStr, klantNaamStr;
  private String line;

  public void init() 
  {
    //bouw de interface op, 1e regel 
    klantNummerLabel = new Label("klantnummer", Label.LEFT);
    add(klantNummerLabel);
    klantNummerList = new List(1, false);
    add(klantNummerList);
    
    //2e regel
    klantNaamLabel = new Label("klantnaam      ", Label.LEFT);
    add(klantNaamLabel);
    klantNaamList = new List(1, false);
    add(klantNaamList);

    //3e regel
    stopButton = new Button("Stop");
    add(stopButton);
    stopButton.addActionListener(this);

    //open de file 
    try
    {
      file = new FileReader("klantlijst.txt");
      buff = new BufferedReader(file);
      eof = false;

      while (!eof)
      { 
        line = buff.readLine();
        if (line == null)
          eof = true;
        else
          klantNummerList.addItem(line);

        line = buff.readLine();
        if (line == null)
          eof = true;
        else
          klantNaamList.addItem(line);  
      }  
      buff.close(); //sluit de file
    }
    catch (IOException e) 
    {
      System.out.println("Error --" + e.toString());
    }
  }

  public void actionPerformed(ActionEvent gebeurtenis)
  {
    if (gebeurtenis.getSource() == stopButton)
    {
      System.exit(0);
    }
  }     
}