Java基础 List 除去重复的对像

List初始化

List<String> name = Arrays.asList("xxx","yyy","zzz");
//或者
List<String> name =new ArrayList<>(Arrays.asList("xxx","yyy","zzz"));

不过这样的话这个list的size就固定了，不能再add了，要注意。

List除去重复的项

List<String> list = Arrays.asList("abc", "hello", "hello", "world");

List<String> distinctList = list.stream().distinct().collect(Collectors.toList());

System.out.println(String.join(",", distinctList));

 输出  abc,hello,world