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List<String[]> a = new LinkedList<String[]>(new HashSet<String[]>(list));
比如
第一次向LinkedList里新增String[] str1={"1","2","3","4","5","6","10"};
第二次向LinkedList里新增String[] str2={"1","2","3","4","5","6","20"};
此时这两个算不算重复的?然后这个20怎么处理?(加到第一个的10里面?)
String[] s;
List<String[]>list = new LinkedList<String[]>();
s = new String[]{"1","2","3","4","5","6","10"};
list.add(s);
s = new String[]{"1","2","3","4","5","6","20"};
list.add(s);
s = new String[]{"1","2","3","4","5","6","30"};
list.add(s);
s = new String[]{"1","2","3","4","5","6","40"};
list.add(s);
s = new String[]{"1","2","3","4","5","6","50"};
//存放想要的结果
List<String>list1 = new LinkedList<String>();
for(String[] strs : list){
for(String str : strs)
if(list1.indexOf(str)==-1)
list1.add(str);
}
for(String t : list1) System.out.print(t+" ");
map存在key,map.get(key).add(需要的字段);
map不存在,则新建一个list放入map
不知道能否解决你的问题
以前就有,去看看吧