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Java Java Objects Creating the MVP Scrabble Tiles

not sure what to do here..

confused to what I need to do here for both exercises.

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


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


1 Answer

in the first challenge u need to append the passed in tile to the tiles. u do it by going to the addTile method and use the += shortcut.

tiles += tile;

in the second challenge u need to check if tiles contain a given tile n the hasTile method, and ur being asked to use the indexOf function and to return false or true.

return tiles.indexOf(tile) != -1;

if this expression evaluate to true then the passed in tile is in tiles. if not, then the passed in tile isn't in tiles.