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Java Java Objects Creating the MVP Counting Scrabble Tiles

Cole Baker
Cole Baker
631 Points

Stuck on looping through a string, and comparing the characters.

I'm trying to do the second part of this problem, but can't seem to correctly loop through the characters of the string, and compare them to each other. The code is supposed to take in a char called letter, and compare it to a string named tiles. Then through a loop, it's supposed to check if the letter is equal to a char in string tiles, then increment a counter showing how many times letter occurs in tiles.

I've tried solving this multiple times, and using my related code from the exercises, but I'm stumped. Would really appreciate some help.

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) {
    boolean isTileLetter = tiles.indexOf(letter) != -1;
    int count;
    for (hasTile(letter) : tiles) {
      tiles.addTile(letter)
      if (tile == letter) {
        count++;
      }
    }
    return count;
  }
}
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

Cole Baker
Cole Baker
631 Points

The question deals only with the method getCountOfLetter.