List Set 一行代码看区别

如下：

public class Test {
	public static void main(String[] args) {
		String[] s = new String[]{"Tom", "jane","Bob", "Jane", "Tom"};
		List<String> list = new ArrayList<>(Arrays.asList(s));
		Set<String> set = new HashSet<>(list);
		System.out.println("数组:" + list);
		System.out.println("list:" + list);
		System.out.println("set:" + set);
	}
}

输出结果：结果见区别  Set：无序不重复；List：有序可重复

数组:[Tom, jane, Bob, Jane, Tom]
list:[Tom, jane, Bob, Jane, Tom]
set:[Tom, Bob, Jane, jane]