java substring method


  • 0
        public int strStr(String haystack, String needle) {
            //return haystack.indexOf(needle);
            for (int i = 0; i < haystack.length() - needle.length() + 1; ++i) {
                if (haystack.substring(i, i + needle.length()).equals(needle)) {
                    return i;
                }
            }
            return -1;
        }
    

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