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Java Java Objects (Retired) Creating the MVP Strings and Chars

Antone Bagnall
Antone Bagnall
6,744 Points
Posted by Antone Bagnall
Antone Bagnall
6,744 Points

hasTile method error. When I run the program there is a compiler error in my hasTile method

I think i may be calling the "IndexOf" method wrongly? Any help would be greatly appreciated! 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
      mHand += tile;

    }

    public boolean hasTile(char tile) {
      boolean verdict;

      if(mHand.IndexOf(tile) >= 0) {
      verdict = true;
      }

      else {
      verdict = false;
      }

      return verdict;
    }
}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

You're not far off at all. Lose the capital i at the start of indexOf. It is lower case. And that's it; your code will now pass. However, the code can be simplified.

My solution looked like:

public boolean hasTile(char tile) {
  if(mHand.indexOf(tile) >= 0) {
    return true;
  } else {
    return false;
  }
}

which does exactly the same thing without using an interim boolean variable. But that can be simplified still further with this:

public boolean hasTile(char tile) {
  return mHand.indexOf(tile) >= 0
}

The mHand expression can only result in a true or false answer. The if statement adds some clarity, perhaps, but it isn't needed.

I hope that helps.

Steve.

Antone Bagnall
Antone Bagnall
6,744 Points
Antone Bagnall
Antone Bagnall
6,744 Points

Great! Thanks for your help :)