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Java Java Objects Creating the MVP Scrabble Tiles

Rick Garland
Rick Garland
2,738 Points

null pointer exception

cant quite get the hang this one

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

  private String tiles;
  private String hits;
  private String misses;

   String ScrabblePlayer (String tiles) {
     this.tiles = tiles;
     hits = "";
     misses = "";
     return tiles;
  }

  public String getTiles() {
    return tiles;
  }

  public boolean addTile(char letters) {
    // TODO: Add the tile to tiles
  boolean isHits = tiles.indexOf(letters) != -1;
    if(isHits) {
      hits += tiles;
    }else{
      misses  += tiles;
     this.tiles += tiles;
    }
    return isHits;
  }

  public boolean hasTile(char tile) {
    // TODO: Determine if user has the tile passed in
    return false;
  }

}

1 Answer

Manish Giri
Manish Giri
16,266 Points

The addTile() method originally was public void addTile(char tile). You're just meant to add the char tile to the string tiles. It's a void so it shouldn't return anything.

Looks like you've changed the method to return a boolean instead.

Here's my addTile() -

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) {
    // TODO: Add the tile to tiles
    tiles += tile;

  }

  public boolean hasTile(char tile) {
    // TODO: Determine if user has the tile passed in

  }

}