+import java.util.Comparator;
-public class Size {
+public class Size implements Comparable<Size> {
private int max = 240;
private int min = 20;
private int size;
public void setSize(int size) {
if (validateSize(size)) {
this.size = size;
- } /* FIXME: raise an error */
+ } else {
+ throw new IllegalArgumentException("Size must be between" + this.min + " and " + this.max);
+ }
}
private boolean validateSize(int size) {
return (size > max || size < min);
}
+
+ @Override
+ public int compareTo(Size size) {
+ int distance = size.size - this.getSize();
+ if (distance >= 0)
+ return distance;
+ else
+ return -distance;
+
+ }
}