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Start your free trialNkosinolwazi Moyo
9,588 PointsReturn true
Help, I'm failing to give an expression that uses the index of a char in a String.
public class ScrabblePlayer {
// A String representing all of the tiles that this player has
private String tiles;
public ScrabblePlayer() {
tiles = "t";
}
public String getTiles() {
return tiles;
}
public void addTile(char tile) {
// TODO: Add the tile to tiles
tiles += "t" ;
}
public boolean hasTile(char tile) {
// TODO: Determine if user has the tile passed in
return false;
}
}
1 Answer
Tonnie Fanadez
UX Design Techdegree Graduate 22,796 PointsHi, great to see you around.
This is how I approached the first problem. I took the field tiles declared and the top of class and added char tile to it using += operator.
public void addTile(char tile) {
// TODO: Add the tile to tiles
tiles+= tile;
}
For the second task I created a boolean hasLetter and I set it to false. I then went for the for-loop to iterate through the characters contained inside tiles. I used *String.toCharArray().length * method to convert the tiles to an array of characters and get the number of letters.
Lastly, I used *String.indexOf( char) * which returns ** -1 ** if the character is not found, if the character is found, it returns a number that is greater or equal to zero.
public boolean hasTile(char tile) {
// TODO: Determine if user has the tile passed in
boolean hasLetter = false;
for(int i =0; i<tiles.toCharArray().length; i++){
hasLetter = ( tiles.indexOf(tile) >=0);
}
return hasLetter;
}
The for-each also works fine as demonstrated below
public boolean hasTile(char tile) {
// TODO: Determine if user has the tile passed in
boolean hasLetter = false;
for(Character letter: tiles.toCharArray()){
hasLetter =tiles.indexOf(tile)>=0;
}
return hasLetter;
}
Happy coding Nkosinolwazi Moyo