What is the lastIndexOf() method of the String class?

What is the lastIndexOf() method of the String class?

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The lastIndexOf() method of the String class allows a user to search the last occurrence of a character or a substring from a given string. This method is overloaded in several ways. In all ways, the method returns the index at which the character or the substring was found, or return -1 on failure.

To search for the last occurrence of a character, the following is used:

int lastIndexOf(int ch)

here, ch specifies the character being searched.

To search for the last occurrence of a substring, the following is used:

int lastIndexOf(String str)

To search the occurrence of a character or a substring from a starting index, the following are used:

int lastIndexOf(int ch, int startIndex)

int lastIndexOf(String str, int startIndex)

here, startIndex specifies the point from which the search for a character or a substring begins. The search begins from startIndex to zero.

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