从单独的类文档堆栈溢出错误访问char数组

Question

I am new to java and i keep throwing this exception is there an error with the way i used mysWord.length or is the issue with .charAt(i)?

public static int setGuessdLetters(String mysWord)
{
    word.letters = new char[mysWord.length()];
    word.guesdletters = new char[mysWord.length()];

    for(int i = 0; i <= mysWord.length(); i++)
    {
        word.letters[i] = mysWord.charAt(i);
        word.guesdletters[i] = '_';
    }

    return(mysWord.length());
}

Error reads:

Please enter a word (14 character maximum): apple

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 5
at java.lang.String.charAt(String.java:658)
at hangman.Hangman.setGuessdLetters(Hangman.java:206)
at hangman.Hangman.main(Hangman.java:258)

Java Result: 1

BUILD SUCCESSFUL (total time: 2 seconds)

Answer 1

Just replace less than equalto(<=) with less than(<) .

Java array indexing begins from 0 to length -1 .That is why you are getting OutOfBoundsException

for(int i = 0; i < mysWord.length(); i++)
    {
        word.letters[i] = mysWord.charAt(i);
        word.guesdletters[i] = '_';
    }