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 Creating the MVP Scrabble Tiles

Posted by Anupa kaderu
Anupa kaderu
1,104 Points

Correct the existing hasTile method to return true if the tile is in the tiles field, and false if it isn't. You can sol

Correct the existing hasTile method to return true if the tile is in the tiles field, and false if it isn't. You can solve this a few ways, however, I'd like you to practice returning the result of the expression that uses the index of a char in a String.

please help me . I didn't get what it mean

ScrabblePlayer.java 
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
    tiles += tile;

  }

  public boolean hasTile(char tile) {
    // TODO: Determine if user has the tile passed in
    return (tiles.indexOf(tile) != -1);
    if(hasTile){
      return tiles.indexof(tile)>0;
    }else{
      return tiles.indexof(tile)>=0;
    }

    return false;
  }

}

1 Answer

khaled adel
khaled adel
3,252 Points
khaled adel
khaled adel
3,252 Points

int result = tiles.indexOf(tile); if(result!=-1) return true; else return false;

he wants you to use the indexOf() method which has a return value of -1 in case the specific character is not included in the String . and has result of the index of the character in the String if the character exists .