// Fig. 8.15: Increment.java
// final instance variable in a class.

public class Increment 
{
   private int total = 0; // total of all increments
   private final int INCREMENT; // constant variable (uninitialized)

   // constructor initializes final instance variable INCREMENT
   public Increment( int incrementValue )
   {
      INCREMENT = incrementValue; // initialize constant variable (once)
   } // end Increment constructor

   // add INCREMENT to total
   public void addIncrementToTotal()
   {
      total += INCREMENT;
   } // end method addIncrementToTotal 

   // return String representation of an Increment object's data
   public String toString()
   {
      return String.format( "total = %d", total );
   } // end method toIncrementString
} // end class Increment


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