Java - String lastIndexOf() Method

The Java string lastIndexOf() method is used to find out the index number for last occurrence of specified substring in the specified substring of the given string ending at the specified index.

Syntax

public int lastIndexOf(String str)
public int lastIndexOf(String str, int fromIndex)

Parameters

`str`	specify the substring to search for.
`fromIndex`	specify the index from which to start the search in backward direction.

Return Value

Returns the index of the last occurrence of the specified substring, searching backward from the specified index, or -1 if there is no such occurrence.

Exception

NA.

Example:

In the example below, lastIndexOf() method is used to find out the index number for last occurrence of specified substring in the given string.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    String MyString = "Java is a programming language. Learning Java is fun.";

    //index number of last occurrence 
    //of "is" in the given substring
    System.out.println(MyString.lastIndexOf("is", 20));   
  }
}

The output of the above code will be:

❮ Java.lang - String