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Start your free trialJordan Dill
1,649 PointsThe code works but I don't understand why.
I tried for awhile to get it without looking up any help. I looked up what exercise to see what issues others where having. Looking at their code clarified some things for me but I really don't understand what the for loop and if statement are exactly doing. Any explanation would be helpful.
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) {
int tileCount = 0;
for (char item : tiles.toCharArray()) {
tileCount = 1;
if(tiles.indexOf(item) == letter) {
tileCount++;
}
}
return tileCount;
}
}
// This code is here for example purposes only
public class Example {
public static void main(String[] args) {
ScrabblePlayer player1 = new ScrabblePlayer();
player1.addTile('d');
player1.addTile('d');
player1.addTile('p');
player1.addTile('e');
player1.addTile('l');
player1.addTile('u');
ScrabblePlayer player2 = new ScrabblePlayer();
player2.addTile('z');
player2.addTile('z');
player2.addTile('y');
player2.addTile('f');
player2.addTile('u');
player2.addTile('z');
int count = 0;
// This would set count to 1 because player1 has 1 'p' tile in her collection of tiles
count = player1.getCountOfLetter('p');
// This would set count to 2 because player1 has 2 'd'' tiles in her collection of tiles
count = player1.getCountOfLetter('d');
// This would set 0, because there isn't an 'a' tile in player1's tiles
count = player1.getCountOfLetter('a');
// This will return 3 because player2 has 3 'z' tiles in his collection of tiles
count = player2.getCountOfLetter('z');
// This will return 1 because player2 has 1 'f' tiles in his collection of tiles
count = player2.getCountOfLetter('f');
}
}
1 Answer
Steven Parker
231,269 PointsI wouldn't expect this code to work. So I tried pasting it into the challenge and got this: "Bummer: Hmmm, the tiles were "krzyziznki" and I passed in 'i' expected 2, but I got 1"
There are two issues I noticed that gave me that expectation:
- the
tileCount
is set to 1 before any matches are found - the letter is being compared to the item's index instead of directly to each item
Otherwise, you're pretty close and once you fix those issues it should pass.