创建一个包含数字和索引的对象,然后创建这些对象的数组,然后执行Array.Sort(arrayset [],比较器)
java docs.然后你可以从排序的数组中挑选出前x个项目.
编辑：
这样的东西…… [我用这个按照’距离’排序
import java.util.Arrays;
import java.util.Comparator;
public class NearestObject
{
public NearestObject(int position, int distance)
{
this.Position = position;
this.Distance = distance;
}
public int Position = 0;
public int Distance = 0;
public static NearestObject[] SortDistance(NearestObject[] items)
{
Arrays.sort(items, new DistanceSort());
return items;
}
}
class DistanceSort implements Comparator
{
public int compare(NearestObject o1, NearestObject o2)
{
return o1.Distance - o2.Distance;
}
}