Java attempt for http://www.reddit.com/r/dailyprogrammer/comments/1heozl/070113_challenge_131_easy_who_tests_the_test

challenge131easy.java

/* 
 * http://www.reddit.com/r/dailyprogrammer/comments/1heozl/070113_challenge_131_easy_who_tests_the_test
 */
import java.util.*; // '*' cus i was lazy and doing this in a rush
import java.io.*;   //ditto
 
public class Challenge131 {
  public static void main (String args[]) {
    //args[0] = input file name
    try {
      BufferedReader br = new BufferedReader(new FileReader(args[0]));
      String line = br.readLine();
 
      // n = the total number of lines in the input file
      int n = Integer.parseInt(line);
      
      for (int i = 0; i < n; i++) {
        line = br.readLine();
        StringTokenizer tk = new StringTokenizer(line);
        
        // format of each line = 
        // <integer t>  <string a> <string b>
        // t = 0: reverse string a
        // t = 1: capitalize string a
        int t = Integer.parseInt(tk.nextToken()) ;
        String a = tk.nextToken();
        String b = tk.nextToken();
        
        String aReversed, aCaps;
        switch (t) {
          case 0:
            aReversed = reverse(a);
            System.out.println("aReversed = " + aReversed + "; b = " + b);
            System.out.println( (aReversed.equals(b))? "     Match!" : "     No match, fuck you!");
            break;
          case 1:
            aCaps = capitalize(a);
            System.out.println("aCaps = " + aCaps + "; b = " + b);
            System.out.println( (aCaps.equals(b))? "     Match!" : "     No match, fuck you!");
            break;
          default:
            break;
        }
      }
      br.close();
    }
    catch (Exception e) {
      System.out.println(e);
    }
  } 
  /**
   * My slow ass way to reverse a String in Java
   */  
  public static String reverse(String str) {
    char[] charArray = str.toCharArray();
    char[] reversed = new char[str.length()];
    int j = 0;
    for (int i = charArray.length - 1; i >= 0; i--) {
      reversed[j] = charArray[i];
      j++;
    }
    return new String(reversed);
  }
 
  /**
   * (Java doesn't have a built-in String caps function?)
   */
  public static String capitalize(String str) {
    char[] charArray = str.toCharArray();
    for (int i = 0; i < charArray.length; i++) {
       charArray[i] = Character.toUpperCase(charArray[i]);
    }
    return new String(charArray);
  }
}