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Java Java Objects Creating the MVP Counting Scrabble Tiles

compiler error for bad for loop

public int getCountOfLetter(char letter){ int tilesCount = 0;

for(letter : tiles.toCharArray()){ tilesCount++; } return tilesCount; }

I need to increment the tilesCount for each instance of char letter that is found in String tiles. Then return the count.

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

  public ScrabblePlayer() {
    tiles = "";
  }

  public int getCountOfLetter(char letter){
    int tilesCount = 0;

   for(letter : tiles.toCharArray()){
      tilesCount++;
    }
    return tilesCount;
  }

  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');
  }
}

2 Answers

I believe you have couple of errors you may want to check

  public int getCountOfLetter(char letter){
    int tilesCount = 0;

   for(letter : tiles.toCharArray()){
      tilesCount++;
    }
    return tilesCount;
  }

'letter' is already defined and can't be used in the for loop .... you already using it here: public int getCountOfLetter(char letter){

the 2nd error is that: in the for loop, you need to prefix the loop variable with the variable type. try this:

public int getCountOfLetter(char letter){
    int tilesCount = 0;

    for(char ltr : tiles.toCharArray()){
        tilesCount++;
    }
    return tilesCount;
}

Thanks!