Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Objects (Retired) Creating the MVP Storing Guesses

Michelle Miller
Michelle Miller
610 Points

java.util.NoSuchElementException -- I am baffled

I have looked through all of the threads but have not turned up any reasons for why I am receiving this error. Here is my code...

public class Game { private String mAnswer; private String mHits; private String mHisses;

public Game(String answer) { mAnswer = answer; mHits = ""; mMisses = ""; }

public boolean applyGuess(char letter) { boolean isHit = mAnswer.indexOf(letter) >= 0; if (isHit) { mHits += letter; } else { mHisses += letter; } return isHit; }

Here is what I'm running in the REPL that results in this error: treehouse:~/workspace$ java-repl Welcome to JavaREPL version 303 (Java HotSpot (TM) 64-Bit Server VM Java 1.8.0_65) Type expression to evaluate, :help for more options or press tab to auto-complete. java> :load Game.java Loaded source file from Game.java java> Game game = new Game("treehouse"); java.util.NoSuchElementException java>

I cannot understand why I am hitting this error in the REPL. Any guesses?

3 Answers

In two places you have mHisses, but in the constructor you have mMisses. As you code stands, it shouldn't even compile. But if you change the two mHisses to mMisses it will compile (and run if you call if from REPL, a client program, or a main method added to Game.

The variable in mMisses in your constructor was either never initialized or mistyped.

Michelle Miller
Michelle Miller
610 Points

Y'all have probably saved my life. Thank you! :)