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Java Java Objects Creating the MVP Counting Scrabble Tiles

Joakim Sjöstedt
Joakim Sjöstedt
1,975 Points

Scrabble challange

Challange:

You'll need to use your skills to loop through each of the tiles, use an equality check, and then increment a counter if the tile and letter match. You got this!

Now in your new method, have it return a number representing the count of tiles that match the letter that was passed in to the method. Make sure to check Example.java for some example uses.


Stuck on this challange. Program don't want to let me use letter in for loop. Sure there are more errors.

Also, can someone explain what the method is trying to accomplich?

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

  public ScrabblePlayer() {
    tiles = "";
  }

  public String getTiles() {
    return tiles;
  }

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

  public boolean hasTile(char tile) {
    return tiles.indexOf(tile) != -1;
  }

  public int getCountOfLetter(char letter) {
    int hit=0;
    for(letter : tiles.toCharArray()) {
      if(letter.equals(tiles))
        hit++;
    }
     return 0;
  }
}
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');
  }
}

3 Answers

Jakub Kielbasiewicz
Jakub Kielbasiewicz
5,060 Points

Why do you return 0 instead of 'hit' in your method?

Joakim Sjöstedt
Joakim Sjöstedt
1,975 Points

Yeah, I changed that just now, thanks :) Still doesn't work though.

Joakim Sjöstedt
Joakim Sjöstedt
1,975 Points

Solved it. Can't use .equals() for some reason. Has to be ==. Is it only strings that work with .equals?