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Java Java Objects (Retired) Creating the MVP Strings and Chars

jinhwa yoo
jinhwa yoo
10,042 Points
Posted by jinhwa yoo
jinhwa yoo
10,042 Points

hasTile method??

"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!"

I don't really understand what the hasTile method is supposed to achieve exactly.

Is it that only one of each letter is allowed in the hand (not the case in Scrabble though I don't think)? Is it checking the number of tiles in the hand against a maximum amount?

Having problems writing the code because I don't understand what the hasTile method is actually for :-(

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

The instructions say the hasTile method should return true if the hand has the tile in it.

What we know:

  • function should be public
  • returns boolean (true/false)
  • accepts a char input

Needs

  • access hand
  • determine if tile (char) is present

The "hand" is in the String field mHand, and we learned that you can find out if a character is a member of a string using .indexOf(). If index is 0 or positive the tile (char) is present.

    // Task 2 of 2
    // 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!
    public boolean hasTile(char tile) {
       return mHand.indexOf(tile) >= 0;
    }