code challenge String and char

Question

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! so this is what I did and it's not working private String mHand; private String mAnswer; public void addTile(char tile) { // Adds the tile to the hand of the player boolean isHand = mAnswer.indexOf(tile) >= 0; return isHand; if(isHand) { mHand += tile; }}

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 · 2016-10-07T02:03:38Z

October 7, 2016 2:03am

Your first part is quite straight forward

public void addTile(char tile) {
        // Adds the tile to the hand of the player
      mHand += tile;
    }.

As for the second part

public boolean hasTile(char tile) {
    if(mHand.indexOf(tile) > -1) {
         return true;
       }
         else {
        return false;
         }
}

The only thing to remember here is indexOf method on strings returns -1 if the char is missing, or greater than that if it is there. 0 is greater than -1.

Hope that explains. Happy to help if you still have doubts.

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Kim Gee

Kim Gee

code challenge String and char

1 Answer

Gunjeet Hattar

Gunjeet Hattar