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Java Java Objects Creating the MVP Scrabble Tiles

Posted by Rohit Narula
Rohit Narula
1,273 Points

Okay great, now can you fix the hasTile method for me, right now it always returns false

Okay great, now can you fix the hasTile method for me, right now it always returns false. Correct the existing hasTile method to return true if the tile is in the tiles field, and false if it isn't. You can solve this a few ways, however, I'd like you to practice returning the result of the expression that uses the index of a char in a String.

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

  }

  public boolean hasTile(char tile) {
    // TODO: Determine if user has the tile passed in
    boolean isTile = tiles.indexOf(tile) != -1;
    if (isTile) {
      return isTile;
    } else {
      return isTile;
    }
  }

}

2 Answers

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,252 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,252 Points

What you're being challenged to do here is to try returning result of the index expression without using an if statement

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

This way you still have a method and you still have something to return; an expression to evaluate.

Geraldine Tanaka Munyoro
Geraldine Tanaka Munyoro
5,170 Points
Geraldine Tanaka Munyoro
Geraldine Tanaka Munyoro
5,170 Points

public boolean hasTile(char tile) { // TODO: Determine if user has; return tile.IndexOf(tile) >= 0;

i keep getting an error please help?