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Java Java Objects Creating the MVP Counting Scrabble Tiles

Kaytlynn Ransom
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Kaytlynn Ransom
Python Web Development Techdegree Student 11,409 Points
Posted by Kaytlynn Ransom
.a{fill-rule:evenodd;}techdegree
Kaytlynn Ransom
Python Web Development Techdegree Student 11,409 Points

Getting the equality check on the scrabble exercise to work

I'm trying to make it so that the getCountOfLetter method loops through the string 'tiles' and increments 'count' every time that it finds a match. I have the specialized for loop down as well as the return statement that increments 'count' by one on each iteration; how would I write the code for the equality check on each loop?

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

  public ScrabblePlayer() {
    tiles = "";
  }

  public String getTiles() {
    return tiles;
  }

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

  public int getCountOfLetter(char letter) {
    int count = 0;
    for (char tile : tiles.toCharArray()){
      (?????)
      return count += 1;
    } 
}

  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

Fahad Mutair
Fahad Mutair
10,359 Points
Fahad Mutair
Fahad Mutair
10,359 Points

Use if statement to check if the char tile equals char letter and put that count +=1 in its body but remove that return

Remember you have to return out side of the for loop.

public int getCountOfLetter(char letter) {
    int count = 0;
    for (char tile : tiles.toCharArray()){
      if ( tile == letter ) {
      count++;
    } }
return count;
}
Larry Cousino
Larry Cousino
23,127 Points
Larry Cousino
Larry Cousino
23,127 Points

Thank you Fahad! The exercise required the use of count++; instead of count +=1;

Both do the same thing, not sure why it wasn't acceptable.

Fahad Mutair
Fahad Mutair
10,359 Points
Fahad Mutair
Fahad Mutair
10,359 Points

cool changed it to ++ thanks lawrence