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

Simon Johnson
Simon Johnson
1,277 Points
Posted by Simon Johnson
Simon Johnson
1,277 Points

Cannot complete the coding challenge

I have been at this for about 30 minutes now. I have looked at the forum, I have googled to try and figure it out, what am I doing wrong?

I thought I was getting it and understood it, and then this challenge came along and threw me.

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(char tile) {
    int counter = 0;
      for (char letter : mHand.toCharArray()) {
        if(mHand.indexOf(tile) > -1) {
        ++counter;
        }
      }
    return String.valueOf(counter);
  }
}

I changed the code block to the following..

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

   public int getTileCount(char tile) {
    int counter = 0;
      for (char letters : mHand.toCharArray()) {
        if(mHand.indexOf(tile) > -1) {
        counter += 1;
        }

      }
      return counter;
   }

but now I get the error 'Expected 1, got 8'

Simon Johnson
Simon Johnson
1,277 Points
Simon Johnson
Simon Johnson
1,277 Points

Hi Jeremy

Yes I had noted the double equals (==) was to denote a does this equal that, rather than a single equals (=) to assign a value to a variable, but I was more questioning the use of it in the answer, when it hasnt been referenced for such a time int eh video series, and is not implied anywhere in the challenged.

Thanks for the assistance with the answer though, much appreciated.

2 Answers

Simon Johnson
Simon Johnson
1,277 Points
Simon Johnson
Simon Johnson
1,277 Points

I found the answer in the forum, in another thread (sorry for double posting. I have to say the wording of the challenge was far too vague this early on in the course. Maybe some reminders/hints (I know we won't get them in the big bad world of real life, but at this stage??).

Answer I used was as below

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

but I still dont quite understand the use of the == ( i understand the function of the ==, just not the use in this context, as the previous video had no reference to anything like that and surely we were checking knowledge of that particular video?

Especially as in other forum posts this line is referenced as part of the answer...

if(mHand.indexOf(tile) > -1)

Jeremy Hill
Jeremy Hill
29,567 Points

the "==" means "is equal to", this is checking a condition; when it is just one '=' this is setting the value.

Jeremy Hill
Jeremy Hill
29,567 Points
Jeremy Hill
Jeremy Hill
29,567 Points 
public int getTileCount(char tile){
    int count = 0;
    for( char letter : mHand.toCharArray()){

      if(letter == tile)
        count++;

    }
    return count;

  }