01 package trail.lifecycle;
02
03 import java.util.ArrayList;
04
05 public interface Calculator {
06
07 public double calculate (int start, int end, double growthrate, double saving);
08
09 public void stopSession ();
10
11 public ArrayList <Integer> getStarts ();
12 public ArrayList <Integer> getEnds ();
13 public ArrayList <Double> getGrowthrates ();
14 public ArrayList <Double> getSavings ();
15 public ArrayList <Double> getResults ();
16
17 }
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