import java.io.*;
public class Cat  {
  public static void main (String args[]) {
    String thisLine;
    for (int i=0; i < args.length; i++) {
       try {
          FileInputStream fin =  new FileInputStream(args[i]);
          // JDK1.1+
          BufferedReader myInput = new BufferedReader
              (new InputStreamReader(fin));
          while ((thisLine = myInput.readLine()) != null) {  
             System.out.println(thisLine);
             }
          }
       catch (Exception e) {
         e.printStackTrace();
         }
       }
    } 
}

import java.applet.*;
import java.net.*;
import java.io.*;
public class MyApplet extends Applet {
  public void init() {
    readFile("mydatafile.txt");   
  }
  public void readFile(String f) {
    try {
      String aLine = "";
      URL source = new URL(getCodeBase(), f);
      BufferedReader br = 
        new BufferedReader
          (new InputStreamReader(source.openStream()));
      while(null != (aLine = br.readLine())) {
         System.out.println(aLine);
      }
      br.close();
      }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
}

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

public class ReadDataInChoice extends Applet {
  Choice myChoice;
  
  public void init() {
    myChoice  = new java.awt.Choice();
    add(myChoice);
    readFile("dataforchoice.txt");
  }
  public void readFile(String f) {
    try {
      String anItem = "";
      URL source = new URL(getCodeBase(), f);
      BufferedReader in = 
         new BufferedReader(new InputStreamReader(source.openStream()));
      while(null != (anItem = in.readLine())) {
        myChoice.add(anItem);
      }
      in.close();
    }
    catch(Exception e) {
     e.printStackTrace();
    }
  }
}

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private static String readFile(String filename) throws IOException {
   String lineSep = System.getProperty("line.separator");
   BufferedReader br = new BufferedReader(new FileReader(filename));
   String nextLine = "";
   StringBuffer sb = new StringBuffer();
   while ((nextLine = br.readLine()) != null) {
     sb.append(nextLine);
     //
     // note:
     //   BufferedReader strips the EOL character
     //   so we add a new one!
     //
     sb.append(lineSep);
   }
   return sb.toString();
}