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Java Java Objects Creating the MVP Remaining Tries

Can't run code because of these apparent exceptions?

Exception in thread "main" java.lang.NullPointerException at Game.getCurrentProgress(Game.java:24) that is my output error, now for the code it's referring to:

class Game { private String answer; private String hits; private String misses;

public Game(String Answer) { this.answer = answer; hits = ""; misses = ""; }

public boolean applyGuess(char letter) { boolean isHit = answer.indexOf(letter) != -1; if (isHit) { hits += letter; } else { misses += letter; } return isHit; }

public String getCurrentProgress() { String progress=""; for (char letter : answer.toCharArray()) { char display = '-'; if (hits.indexOf(letter) != -1) { display = letter; } progress+=display; } return progress; }

}

Is there anything I'm visibly doing wrong, or what?

1 Answer

Christof Baumgartner
Christof Baumgartner
20,864 Points

So at least one problem is in you constructor. You wrote Answer with an capital A in the parameters, but with a lower a in the function body. Here is correct version:

    public Game(String answer) {
        this.answer = answer; 
        hits = ""; 
        misses = "";
    }

Does this solve your problem?

Thank you so much, I was getting so frustrated because I couldn't tell what was wrong.