Assignment #86 and LetterAtATime

Code

      /// Name: Jason Kim
      /// Period: 7
      /// Program Name: LetterAtATime
      /// File Name: LetterAtATime.java
      /// Date Finished:12/1/15
      
      import java.util.Scanner;
      
      public class LetterAtATime
      {
          public static void main(String[] args)
          {
              Scanner kb = new Scanner(System.in);
              System.out.print("What is your message? " );
              String message = kb.nextLine();
              
              System.out.println("\nYour message is " + message.length() + " characters long.");
              System.out.println("The first character is at position 0 and is '" + message.charAt(0) + "'.");
              int lastpos = message.length() - 1;
              System.out.println("The last character is at position " + lastpos + " and is '" + message.charAt(lastpos) + "'.");
              System.out.println("\nHere are all the characters, one at a time:\n");
              
              for ( int i = 0; i < message.length(); i++ )
              {
                  System.out.println("\t" + i + " - '" + message.charAt(i) + "'");
              }
              
              int a_count = 0, e_count = 0, i_count = 0, o_count = 0, u_count = 0;
              
              for ( int i=0; i < message.length(); i++ )
              {
                  char letter = message.charAt(i);
                  if ( letter == 'a' || letter == 'A' )
                  {
                      a_count++;
                  }
              }
              
              for ( int i=0; i < message.length(); i++ )
              {
                  char letter = message.charAt(i);
                  if ( letter == 'e' || letter == 'E' )
                  {
                      e_count++;
                  }
              }
              
              for ( int i=0; i < message.length(); i++ )
              {
                  char letter = message.charAt(i);
                  if ( letter == 'i' || letter == 'I' )
                  {
                      i_count++;
                  }
              }
              
              for ( int i=0; i < message.length(); i++ )
              {
                  char letter = message.charAt(i);
                  if ( letter == 'o' || letter == 'O' )
                  {
                      o_count++;
                  }
              }
              
              for ( int i=0; i < message.length(); i++ )
              {
                  char letter = message.charAt(i);
                  if ( letter == 'u' || letter == 'U' )
                  {
                      u_count++;
                  }
              }
              
              System.out.println("\nYour message contains the letter 'a' " + a_count + " times. Isn't that interesting?");
              System.out.println("\nYour message contains the letter 'e' " + e_count + " times. Isn't that interesting?");
              System.out.println("\nYour message contains the letter 'i' " + i_count + " times. Isn't that interesting?");
              System.out.println("\nYour message contains the letter 'o' " + o_count + " times. Isn't that interesting?");
              System.out.println("\nYour message contains the letter 'u' " + u_count + " times. Isn't that interesting?");
          }
      }
      //String index out of range: 31
      //the length of box is 3 but the position of the last character is 2
      //Because the message lenght counts from 1 when there is a message and the charAt counts from 0, "i" exceeds the range of message.charAt() if we do i<=message.length().

    

Picture of the output