Stuck

Question

The prompt is.... :
Below is an object that I am using to represent a player in a Scrabble-like game I'm building. The mHand field is used to represent all the tiles the user currently has in their hand.

Can you please fill out the addTile method so that it takes the char that is passed and adds it to the mHand member field? Thanks!

ScrabblePlayer.java

public class ScrabblePlayer {
    private String mHand;

    public ScrabblePlayer() {
        mHand = "";
    }

    public String getHand() {
       return mHand;
    }

    public void addTile(char tile) {
        // Adds the tile to the hand of the player

    }

    public boolean hasTile(char tile) {
       return false;
    }
}

Answer 1 · 2016-01-25T17:27:12Z

January 25, 2016 5:27pm

Hi there,

look here:

    public void addTile(char tile) {
        // this method takes a tile as argument
       mHand += tile;
      // using += sign you can add the tile to mHand

    }

    public boolean hasTile(char tile) {
      boolean hasTile = mHand.indexOf(tile) != -1;
      // create a boolean
      // the method indexOf returns -1 if there is no tile in mHand
      // so if not (!) -1 ... boolean value is true 
      // if there is no tile in mHand indexOf would return -1
      // hasTile would turn into false
      return hasTile;
      // return the value of hasTile (false or true)
      // in dependance of the indexOf result
    }

Makes sense?

GRigorij

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Kyudong Lim

Kyudong Lim

Stuck

1 Answer

Grigorij Schleifer

Grigorij Schleifer