IndexOf(String str)

Definition

The indexOf(String str) method is used to find the index position of the first occurrence of a specified substring within a larger string.

Related terms

lastIndexOf(String str): This method finds the index position of the last occurrence of a specified substring within a larger string.

contains(CharSequence sequence): This method checks if a sequence of characters exists within another string and returns true or false accordingly.

replace(CharSequence target, CharSequence replacement): This method replaces all occurrences of one sequence with another sequence within a given string.