skwujinhua wrote:
書上明明說Comparator接口定義二個方法。
compare()和 equals()
class MyComp implements Comparator
{
public int compare (Object a.Ojbect b)
{
String aStr,bStr;
aStr = (String )a;
bStr = (String )b;
return bStr.compareTo(aStr); //如果從小到大return aStr.compareTo(bStr);
}
}
但這個類中只重寫了compare(Object a, Object b)
equals()沒有重寫啊﹐在類中引用接口﹐那么在本類中不是都要實現接口中定義的方法嗎?
哪個高手說說? 那只企鵝咋好几天不見了?