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String lastIndexOf()


The java string lastIndexOf() method returns last index of the given character value or substring. If it is not found, it returns -1. The index counter starts from zero.


Signature

There are 4 types of lastIndexOf method in java. The signature of lastIndexOf methods are given below:

No. Method Description
1 int lastIndexOf(int ch) returns last index position for the given char value
2 int lastIndexOf(int ch, int fromIndex) returns last index position for the given char value and from index
3 int lastIndexOf(String substring) returns last index position for the given substring
4 int lastIndexOf(String substring, int fromIndex) returns last index position for the given substring and from index

Parameters

ch: char value i.e. a single character e.g. ‘a’

fromIndex: index position from where index of the char value or substring is retured

substring: substring to be searched in this string


Returns

last index of the string


Java String lastIndexOf() method example

  1. public class LastIndexOfExample{
  2. public static void main(String args[]){
  3. String s1=“this is index of example”;//there are 2 ‘s’ characters in this sentence
  4. int index1=s1.lastIndexOf(‘s’);//returns last index of ‘s’ char value
  5. System.out.println(index1);//6
  6. }}

Output:

6

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