Finding second occurrence of a substring in a string in Java

Question

We are given a string, say, \"itiswhatitis\" and a substring, say, \"is\". I need to find the index of \'i\' when the string \"i

Answer 1

int first = string.indexOf("is");
int second = string.indexOf("is", first + 1);

This overload starts looking for the substring from the given index.