Java, For each loop

Question

Im trying to solve the challenge,
My current code is:
  public int GetTileCount(char tile) {
    int count = 0;
    for(tile: mHand.toCharArray()) {
      if(hasTile(tile)) {
        count++;
      }
    }
    return count;
  }
Im not sure what I am doing wrong, would be great if you could help me
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) {
   return mHand.indexOf(tile) > -1;
  }
}
```

Alexander Bueno · Accepted Answer

in your for each loop you should specify the variable you are creating such as
Java
for(char handTile: mHand.toCharArray()){
}

The issue that you are probably confused about is that you are trying to assign the tile you are taking in to each of the of the tiles in the player's hand, when you should be creating a variable (Example char handTile) to take hold of each individual letter per iteration of the loop in order to compare it to the letter you are getting as an argument for the method.
Your second issue is a simple one to fix all you have to do is compare the character that you recieved as an argument for the method and since you just want to make sure it matches anything in your hand then all you have to do is use an "==" to compare the letter with the tile.
Java
if(tile == handTile){
   count++;
}

Using the "==" works fine here but if we were to be using capital letters than you would definitely have an issue since characters have a value called unicode. This would cause an issue because "a" does not have the exact same value as "A".
If you want to learn a little bit more about unicode here's a link.
https://docs.oracle.com/javase/tutorial/i18n/text/unicode.html

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stevenhohberg

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Java, For each loop

1 Answer

Alexander Bueno

Alexander Bueno

stevenhohberg

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