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Java Java Objects Creating the MVP Counting Scrabble Tiles

yige yang
yige yang
8,329 Points
Posted by yige yang
yige yang
8,329 Points

why is "missing return statement" in my case

I print out the count. Why is my code wrong?

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) {
    tiles += tile;
  }

  public boolean hasTile(char tile) {
    return tiles.indexOf(tile) != -1;
  }

  public int getCountOfLetter(char letter) {
    for (int count=0;tiles.indexOf(letter) != -1;count++) {
      System.out.println(count);
    }
  }
}

1 Answer

Daniel Turato
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Daniel Turato
Java Web Development Techdegree Graduate 30,124 Points
Daniel Turato
.a{fill-rule:evenodd;}techdegree seal-36
Daniel Turato
Java Web Development Techdegree Graduate 30,124 Points

That's not the correct way to complete this challenge. You need to loop over each individual character inside the tiles field, and compare it to the letter passed into the method. If they're equal, then you increase count then return the final count after the loop is completed. To loop over each individual character, you have to generate a char[] from tiles by using the toCharArray() method. So if you do all this, you should get this:

 public int getCountOfLetter(char letter) {
    int count = 0;

    for(char c : this.tiles.toCharArray()) {
      if(c == letter) {
        count++;
      }
    }

    return count;
  }
yige yang
yige yang
8,329 Points
yige yang
yige yang
8,329 Points

Thank you so much. From your example I know how to use tocharArray( ) now.