Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Objects (Retired) Creating the MVP For Each Loop

Posted by Dax Stucki
Dax Stucki
1,034 Points

getTileCount - not sure if I understand what is being asked of me

I've created a method for getTileCount, but I'm still not able to pass.

What am I missing?

public int getTileCount() { tileCount = 0; for (char letter: mHand.toCharArray()) { tileCount += 1; } System.out.println("Tile count is:" + tileCount); return tileCount; }

ScrabblePlayer.java 
public class ScrabblePlayer {
  private String mHand;
  private int tileCount;

  public ScrabblePlayer() {
    mHand = "";
  }

  public String getHand() {
   return mHand;
  }

  public int getTileCount() {
    tileCount = 0;
    for (char letter: mHand.toCharArray()) {
      tileCount += 1;
      }
    System.out.println("Tile count is:" + tileCount);
    return tileCount;
  }

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

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

2 Answers

Steve Hunter
Steve Hunter
57,684 Points

I had to read this challenge a couple of times. You don't want to count how many tiles the player has - there's no need to use a for:each loop to do that. You can just use the length() method for that! You're pretty close with your code but you need to pass a char in, then iterate over the mHand string.

The getTileCount method needs to take a char as a parameter. The for:each loop then iterates through the mHand string and counts how many instances of that char occur. So, if the player's hand was H E L L O, the method would be called like: getTileCount('L'); and it would return 2, the number of Ls in the hand. If the hand was T R E E H O U S E, getTileCount('E'); would return 3, and so on.

My solution looks like:

  public int getTileCount(char tile){
    int count = 0;
    for (char letter : mHand.toCharArray()) {
      if(letter == tile){
        count++;
      }
    }
   return count;
 }

I hope that makes sense!

Steve

Dax Stucki
Dax Stucki
1,034 Points
Dax Stucki
Dax Stucki
1,034 Points

Thank you !

This makes more sense. Much clearer.

Thanks very much.

Dax

Steve Hunter
Steve Hunter
57,684 Points

Cool. Glad I helped.

Steve.