compannee.java

运用java 实现Kruskal 算法 计算树的重量最小 覆盖最大

import java.util.Comparator;

public class CompAnnee implements Comparator {
  public int compare(Object o1, Object o2){
    if(!(o1 instanceof Video))
      throw new ClassCastException();
    return (new Integer(((Video)o1).obtenirAnnee())).compareTo(
                                        new Integer(((Video)o2).obtenirAnnee()));
  }
}