Java String indexOf() - GeeksforGeeks
https://www.geeksforgeeks.org/java-string-indexof/
WEBJun 16, 2023 · This method returns the index within this string of the first occurrence of the specified character, starting the search at the specified index or -1, if the character does not occur. Syntax: int indexOf(char ch, int strt) Parameters: ch :a character. strt : the index to start the search from.
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