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Java Java Objects Creating the MVP Counting Scrabble Tiles

Posted by gianmarco giacchetti
gianmarco giacchetti
4,295 Points

Counting Scrabble Tiles error

Don't know where is the error here. please help

ScrabblePlayer.java 
public class ScrabblePlayer {
  // A String representing all of the tiles that this player has
  private String tiles;
  private int count;

  public ScrabblePlayer() {
    tiles = "";
  }

  public int getCountOfLetter(char tile){
    for (char letter : tiles.toCharArray()){
      int count = 0;
      if(tile == letter){


        count++;
      }
    }
    return count;
  }


  public String getTiles() {
    return tiles;
  }

  public void addTile(char tile) {
    tiles += tile;
  }

  public boolean hasTile(char tile) {
    return tiles.indexOf(tile) != -1;
  }
}
Example.java 
// This code is here for example purposes only
public class Example {

  public static void main(String[] args) {
    ScrabblePlayer player1 = new ScrabblePlayer();
    player1.addTile('d');
    player1.addTile('d');
    player1.addTile('p');
    player1.addTile('e');
    player1.addTile('l');
    player1.addTile('u');

    ScrabblePlayer player2 = new ScrabblePlayer();
    player2.addTile('z');
    player2.addTile('z');
    player2.addTile('y');
    player2.addTile('f');
    player2.addTile('u');
    player2.addTile('z');

    int count = 0;
    // This would set count to 1 because player1 has 1 'p' tile in her collection of tiles
    count = player1.getCountOfLetter('p');
    // This would set count to 2 because player1 has 2 'd'' tiles in her collection of tiles
    count = player1.getCountOfLetter('d');
    // This would set 0, because there isn't an 'a' tile in player1's tiles
    count = player1.getCountOfLetter('a');

    // This will return 3 because player2 has 3 'z' tiles in his collection of tiles
    count = player2.getCountOfLetter('z');
    // This will return 1 because player2 has 1 'f' tiles in his collection of tiles
    count = player2.getCountOfLetter('f');
  }
}

1 Answer

Jennifer Nordell
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STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi Gianmarco! You're doing just fine, but your declaration of the count variable is off. You declare the variable inside the for loop. This has a couple of consequences. First, your count will be reset to 0 through each iteration of the loop. Secondly, you will receive a compiler error when you then try to return count from outside the for loop. Remember, any variable declared inside a loop will only exist while that loop is running.

The solution here is to take int count = 0; and move it up to the top of the method before the for loop.

Hope this helps! :sparkles: