Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialKim Gee
3,841 Pointscode challenge String and char
Below is an object that I am using to represent a player in a Scrabble-like game I'm building. The mHand field is used to represent all the tiles the user currently has in their hand. Can you please fill out the addTile method so that it takes the char that is passed and adds it to the mHand member field? Thanks! so this is what I did and it's not working private String mHand; private String mAnswer; public void addTile(char tile) { // Adds the tile to the hand of the player boolean isHand = mAnswer.indexOf(tile) >= 0; return isHand; if(isHand) { mHand += tile; }}
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
}
public boolean hasTile(char tile) {
return false;
}
}
1 Answer
Gunjeet Hattar
14,483 PointsYour first part is quite straight forward
public void addTile(char tile) {
// Adds the tile to the hand of the player
mHand += tile;
}.
As for the second part
public boolean hasTile(char tile) {
if(mHand.indexOf(tile) > -1) {
return true;
}
else {
return false;
}
}
The only thing to remember here is indexOf method on strings returns -1 if the char is missing, or greater than that if it is there. 0 is greater than -1.
Hope that explains. Happy to help if you still have doubts.