题目:在HashSet集合中添加Person对象,把姓名相同的人当作同一个人,禁止重复添加. 分析:1.定义一个Person类,定义name和age属性,并重写hashCode()和equals()方法,针对Person类的name属性进行比较. 代码: import java.util.HashSet; import java.util.Iterator; import java.util.Set; public class Test70602 { public static void mai
Given a list of directory info including directory path, and all the files with contents in this directory, you need to find out all the groups of duplicate files in the file system in terms of their paths. A group of duplicate files consists of at l
Given a list of directory info including directory path, and all the files with contents in this directory, you need to find out all the groups of duplicate files in the file system in terms of their paths. A group of duplicate files consists of at l
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