| 1 | public class Size implements Comparable<Size> { |
| 2 | private int max = 240; |
| 3 | private int min = 20; |
| 4 | private int size; |
| 5 | |
| 6 | Size(int size) { |
| 7 | setSize(size); |
| 8 | } |
| 9 | |
| 10 | public int getSize() { |
| 11 | return size; |
| 12 | } |
| 13 | |
| 14 | public void setSize(int size) { |
| 15 | if (validateSize(size)) { |
| 16 | this.size = size; |
| 17 | } else { |
| 18 | throw new IllegalArgumentException("Size must be between" + this.min + " and " + this.max); |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | private boolean validateSize(int size) { |
| 23 | return (size > max || size < min); |
| 24 | } |
| 25 | |
| 26 | @Override |
| 27 | public int compareTo(Size size) { |
| 28 | int distance = size.size - this.getSize(); |
| 29 | if (distance >= 0) |
| 30 | return distance; |
| 31 | else |
| 32 | return -distance; |
| 33 | |
| 34 | } |
| 35 | } |