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Matthew Armendariz
3,896 PointsI'm stuck. Can someone please help me out?
Instructions are: "Can you also please help me write out the hasTile method? It should return true if the hand has the tile, and false if it doesn't. Thanks!"
Can someone please walk me through this?
public class ScrabblePlayer {
private String mHand;
public ScrabblePlayer() {
mHand = "";
}
public String getHand() {
return mHand;
}
public void addTile(char tile) {
// Adds the tile to the hand of the player
mHand += tile;
}
public boolean hasTile(char tile) {
return false;
}
}
4 Answers
Ken Alger
Treehouse TeacherMatthew;
In the hasTile() method we need to look at mHand and see if tile is in there, right? We should, therefore be able to use an if statement along the lines of:
if (mHand.indexOf(tile) >= 0) {
return true;
} else {
return false;
}
That will look through mHand, determine the index value of tile and if that index value is equal to or greater than 0, tile must, therefore, be in mHand, right?
We can also simplify our code a bit and clean it up by doing:
return mHand.indexOf(tile) >=0;
instead of that entire if... else statement.
Post back if you are still stuck.
Happy coding,
Ken
Ken Alger
Treehouse TeacherRahul;
I'm able to get that same code to function properly without error. Are you sure that the code is inserted in the correct method for Task 2?
Post back if you're still stuck.
Happy coding,
Ken
Rahul Daware
6,314 PointsHi Ken.
No. I am still not able to get it. Its task 2 and I am adding this in hasTile() method. I am getting following error: Bummer! Hmmm, remember that the indexOf method on strings returns -1 if the char is missing, or greater than that if it is there. 0 is greater than -1.
I added this : return mHand.indexOf(tile) >=0;
Thanks, Rahul
Ken Alger
Treehouse TeacherCan you post all the code from the code challenge for me to see?
Rahul Daware
6,314 PointsHi Ken, Here is the code :
public class ScrabblePlayer { private String mHand;
public ScrabblePlayer() {
mHand = "";
}
public String getHand() {
return mHand;
}
public void addTile(char tile) {
// Adds the tile to the hand of the player
mHand = Character.toString(tile);
}
public boolean hasTile(char tile) {
return mHand.indexOf(tile) >=0;
}
}
Ken Alger
Treehouse TeacherRahul;
Have another look at your addTile() method. That method doesn't currently work as desired. ;-)
Ken
Rahul Daware
6,314 PointsThanks Ken. I got it!
Rahul Daware
6,314 PointsRahul Daware
6,314 PointsHI Ken,
This answer does not work. The answer looks correct but the code checker does not accept it. I filed an issue for this but no reply yet.