Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by priyamvad acharya
priyamvad acharya
Courses Plus Student 110 Points

Anyone help me to solve this challenge

In this code it is asked to write code for hasTile method ? It return true if hand has tile and false if it doesn't.

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) {


    }
}

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

The indexOf() method returns the index # of the letter in tile, if it is in mHand, or -1 if it is not. So if tile is in mHand the function then mHand.indexOf(tile) will be positive and greater than -1. If the tile is not in mHand then the function will return -1 > -1, which is false:

   public boolean hasTile(char tile) {
        return mHand.indexOf(tile) > -1;
   }
Isam Al-Abbasi
Isam Al-Abbasi
2,058 Points
Isam Al-Abbasi
Isam Al-Abbasi
2,058 Points

Thanks again jcorum I was struggling with this challenge and I was impressed how easy your code was!! well explained sir.