The indexOf(int ch, int fromIndex) method is same as indexOf() method but here this method starts finding the character from the index we specify.
Method Definition: int indexOf(int ch, int fromIndex)
Return Type: It returns the index of the character specified in the argument.
So, here the first occurrence of ‘i’ is after second index is four So, 4 is returned as output.
Here, the first occurrence of ‘h’ after 4th index is 9. So, its returned.