src/Size.java

   1
   2 public class Size {
   3     private int max = 240;
   4     private int min = 20;
   5     private int size;
   6
   7     Size(int size) {
   8         setSize(size);
   9     }
  10
  11     public int getSize() {
  12         return size;
  13     }
  14
  15     public void setSize(int size) {
  16         if (validateSize(size)) {
  17             this.size = size;
  18         } else {
  19             throw new IllegalArgumentException("Size must be between" + this.min + " and " + this.max);
  20         }
  21     }
  22
  23     private boolean validateSize(int size) {
  24         return (size > max || size < min);
  25     }
  26 }