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The error is like this: Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 9 at java.lang.String.charAt(String.java:658) at palindrom.Palindrom.main(Palindrom.java:30)

Gaby Clarissa
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  • the first character of a string is at index 0. So, someString.charAt(9) crashes with that error if the string has 9 or fewer characters (if you want the very last character of a 9-sized string, ti's .charAt(8) - because we start the count at 0). – rzwitserloot Mar 26 '20 at 03:53

1 Answers1

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Maybe you could try to compare the index and the string length before calling charAt().

public static void main() {
    String str = "hello";
    int index = 9;
    if (index < str.length()) {
        char c = str.charAt(index);
    }
}
popahqiu
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