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

Mauricio Duran
Mauricio Duran
6,167 Points

Im not able to succesfully complete the code challenge, and I do not get where Im going wrong. (For each loop)

Instructions: So back to that ScrabblePlayer. I found that it's not enough to know if they just have a tile of a specific character. We need to know how many they actually have. Can you please add a method called getTileCount that uses the for each loop you just learned to loop through the characters and increment a counter if it matches? Return the count, please, thanks!

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) {
   return mHand.indexOf(tile) > -1;
  }

   /*public String getTileCount(){

    String count="";

    for (char tile : mHand.toCharArray()) {
        char display= '-';

        if(mHand.indexOf(tile) >= 0){

            display = tile; 

        }

        count += display;

    }

    return count;

  }

}*/
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) {
   return mHand.indexOf(tile) > -1;
  }

   /*public String getTileCount(){

    String count="";

    for (char tile : mHand.toCharArray()) {
        char display= '-';

        if(mHand.indexOf(tile) >= 0){

            display = tile; 

        }

        count += display;

    }

    return count;

  }

}*/
Simon Coates
Simon Coates
28,694 Points

count should be an int.

you need to receive the character to look for as a parameter.

use == to test primitive chars. Indexof is incorrect. You're essentially testing each character in the string to confirm it's in the string.

1 Answer

Simon Coates
Simon Coates
28,694 Points

see here . People get stuck on that one on a regular basis, so there are some existing explanations. However, the common thread is often using indexof rather than direct equality on the char, or failing to accept a tile in the method.