BufferedReader readLine() example

// Implement the Unix cat utility in java

import java.io.*;

class cat  {

  public static void main (String args[]) {
  
    String thisLine;
 
   //Loop across the arguments
   for (int i=0; i < args.length; i++) {
 
     //Open the file for reading
     try {
       BufferedReader br = new BufferedReader(new FileReader(args[i]));
       while ((thisLine = br.readLine()) != null) { // while loop begins here
         System.out.println(thisLine);
       } // end while 
     } // end try
     catch (IOException e) {
       System.err.println("Error: " + e);
     }
  } // end for
  
} // end main

}