1. < string > .length () -- > < int >
   ``CS1 exams are fun!   '' .length = 18
   
2. < string > .indexOf (< string >) -- > < int >
   ``frim fram sauce''.indexOf ( ``fr'') = 0
   ``frim fram sauce''.indexOf ( ``fra'') = 5
   
3. < string > .substring (< int >) -- > < string >
   returns the substring from the position specified by the parameter to the end of the string.
   ``Monday''.substring (3) =  ``day''}
4. < string > .substring (< int >,  < int >) -- > < string >
   returns the substring from the position of the first parameter to the position one less than the second parameter.
   ``tired hand''.substring (2,  7) =  ``red h''
   

static private void computeTheAverage ()
{
    int sum = 0;
    for (int x = 0;  x < nrElements;  x + +)
    {
        sum = sum + a [x];
    }
    average = (double) sum / (double) nrElements;
}
 

static private void displayTheNumberAboveAverage ()
{
    for (int x = 0;  x < nrElements;  x = x + 1)
    {
        if (a [x] > average)
        {
            IO.println (a [x]);
        };
    };
};
More String Functionality...

1. < string > .equals (< string >) -- > < boolean >
   ``Cat''.equals ( ``dog'') = false
   ``cat''.equals ( ``cat'') = true
   ``cat''.equals ( ``Cat'') = False
   
2. < string > .equalsIgnoreCase (< string >) -- > < boolean >
   
3. < string > .compareTo (< string >) -- > < int >
   Returns...
   • 0 - if the two strings are equal
     
   • Something negative if the recieving string is alphabetically less than the parameter.
     
   • Something positive if the recieving string is alphabetically greater than the parameter.
     
   Ex
   ``cat''.compareTo ( ``bat'') -- > +
   ``bat''.compareTo ( ``bats'') -- > -