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Start your free trialGreg Marsee
3,193 Pointscompiler error for bad for loop
public int getCountOfLetter(char letter){ int tilesCount = 0;
for(letter : tiles.toCharArray()){ tilesCount++; } return tilesCount; }
I need to increment the tilesCount for each instance of char letter that is found in String tiles. Then return the count.
public class ScrabblePlayer {
// A String representing all of the tiles that this player has
private String tiles;
public ScrabblePlayer() {
tiles = "";
}
public int getCountOfLetter(char letter){
int tilesCount = 0;
for(letter : tiles.toCharArray()){
tilesCount++;
}
return tilesCount;
}
public String getTiles() {
return tiles;
}
public void addTile(char tile) {
tiles += tile;
}
public boolean hasTile(char tile) {
return tiles.indexOf(tile) != -1;
}
}
// 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');
}
}
2 Answers
markmneimneh
14,132 PointsI believe you have couple of errors you may want to check
public int getCountOfLetter(char letter){
int tilesCount = 0;
for(letter : tiles.toCharArray()){
tilesCount++;
}
return tilesCount;
}
'letter' is already defined and can't be used in the for loop .... you already using it here: public int getCountOfLetter(char letter){
the 2nd error is that: in the for loop, you need to prefix the loop variable with the variable type. try this:
public int getCountOfLetter(char letter){
int tilesCount = 0;
for(char ltr : tiles.toCharArray()){
tilesCount++;
}
return tilesCount;
}
Greg Marsee
3,193 PointsThanks!