java-使用set集合过滤list集合中重复的元素

1 List listWithDup = new ArrayList();
2         listWithDup.add("1");
3         listWithDup.add("2");
4         listWithDup.add("3");
5         listWithDup.add("1");
6 
7         List listWithoutDup = new ArrayList(new HashSet(listWithDup));
8         System.out.println("list with dup:"+ listWithDup);
9         System.out.println("list without dup:"+ listWithoutDup);

后续补充 set list map 数组 等数据结构的原理

转载于:https://www.cnblogs.com/My-Cloud/p/4610434.html