Click here to watch in Youtube :
https://www.youtube.com/watch?v=uJ2RbFNxVPo&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge

Java Tutorial : Java StringBuffer [lastIndexOf(String str,int fromIndex) method]

LastIndexOfDemo.java

/*
 * public int lastIndexOf(String str, int fromIndex)
 * 
 * Parameters: 
 * ---------- 
 * str - the substring to search for. 
 * 
 * fromIndex - the index to start the search from.
 * 
 * Returns: 
 * ------- 
 * the index within this sequence of
 * the last occurrence of the specified substring.
 */
public class LastIndexOfDemo
{

    public static void main(String[] args)
    {
        String str = "com.com.com";
        StringBuffer sb = new StringBuffer(str);
        System.out.println("sb = "+sb);

        //returns 4
        int indexPosition = sb.lastIndexOf("com", 7);
        System.out.println("lastIndexOf(\"com\",7) = "
                + indexPosition);

    }
}