摘要: import java.util.*; class Counter { } class Groundhog2 { int ghNumber; Groundhog2(int n) { ghNumber = n; } public int hashCode() { return ghNumber; } public boolean equals(Object o) {... 阅读全文
posted @ 2017-02-12 19:54 友哥 阅读(238) 评论(0) 推荐(0) 编辑