Java: is there an int method like charAt()?

I don't want "charAt(1);" to return the character at position 1 in the string... I want it to report all instances of "matching = 1;"

Take for example

int matching = 1;
int notMatching = 0;
int HI = matching;
int IH = notMatching; 
int searchString = theString.charAt(notMatching);

  int count = 0;
  int index = 0;

      while (0 < theString.length())
      {
      int  = theString.charAt(matching);
        if (theString.charAt(notMatching) == searchString)    
        {
        count = count + 1;
        }
        index = index + 1;
      }

Not a great example but basically what I want, or what this program is supposed to do is take a user input:

HIHIIH

and report the instances of HI spelled as IH... so the return would be for instance;

System.out.println("HI was spelled as IH" + count + "times");