exo6/Variable.java

   1 import java.util.TreeMap;
   2 import java.util.Map.Entry;
   3
   4 class Variable extends Terme {
   5     //TODO: TreeMap might look overkill
   6     TreeMap<Integer, Double> v;
   7
   8     Variable() {
   9         v = new TreeMap<Integer, Double>();
  10         fill();
  11     }
  12
  13     private void fill() {
  14         int i = 0;
  15         for (double d = -5.0; d <= 5.0; d = d + 0.25) {
  16             v.put(i, d);
  17             i++;
  18         }
  19     }
  20
  21     public Entry<Integer, Double> getFirstEntry() {
  22         return v.firstEntry();
  23     }
  24
  25     public Integer size() {
  26         return v.size();
  27     }
  28
  29     public double evaluer() {
  30         return v.pollFirstEntry().getValue();
  31     }
  32 }