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Start your free trialFurkan Celik
646 Pointsstuck in Scrabble task
i really didn't understand what should i do
public class ScrabblePlayer {
// A String representing all of the tiles that this player has
private String tiles;
private String passed;
private String missed;
public ScrabblePlayer() {
tiles = "";
}
public String getTiles() {
return tiles;
}
public void addTile(char tile) {
// TODO: Add the tile to tiles
boolean isUsed = tiles.indexOf(tile) != -1;
if (isUsed) {
passed += tile;
} else {
missed += tile;
}
return isUsed;
}
public boolean hasTile(char tile) {
// TODO: Determine if user has the tile passed in
return false;
}
}
2 Answers
Cameron Hastings
3,439 PointsYou almost have it. You just put your code in the wrong method.
Okay, so here is the first task:
"For this first task, modify the addTile method so that it appends the tile that was passed in, to the player's tiles. Practice using the += shortcut method for string concatenation."
It wants you to add the char tile to the String tiles, which is stated above in the fields.
You can do it like this:
public void addTile(char tile) {
tiles = tiles + tile
}
BUT it wants you to "Practice using the += shortcut method for string concatenation." So you should rewrite it like this:
Solution to Task 1:
public void addTile(char tile) {
tiles += tile;
}
Here is the second task:
"Correct the existing hasTile method to return true if the tile is in the tiles field, and false if it isn't. You can solve this a few ways, however, I'd like you to practice returning the result of the expression that uses the index of a char in a String."
Like what was done in your code and in the video, you need to set up a boolean in the hasTile method (not the addTile method). Like this:
public boolean hasTile(char tile) {
boolean isUsed = tiles.indexOf(tile) != -1;
return False;
}
.indexOf() will tell you the location of a char within a String by providing a numbered location (0 to whatever). If it is not present, it will return '-1'. This boolean says 'set isUsed to true, if tiles.indexOf(tile) is not equal to -1'.
From there, all you have to do is change the return false' to 'return isUsed'.
Solution to Task 2:
public boolean hasTile(char tile) {
boolean isUsed = tiles.indexOf(tile) != -1;
return isUsed;
}
That's it. Hope this helped.
Esmerald Seitlli
3,587 Pointspublic void addTile(char tile) { tiles += tile; } is not working
Furkan Celik
646 PointsFurkan Celik
646 PointsI'm really appreciate with your help thank you very much