JAVA数组Array和List集合相互转换

1、List转Array

public static void main(String args[]) {
        FetchFileUtil Ffu = new FetchFileUtil();
        List<String> list = new ArrayList<String>();
        list.add("dff1");
        list.add("dff2");
        list.add("dff3");
        list.add("dff4");
        list.add("dff5");
        String[] array = new String[list.size()];
        String[] s = list.toArray(array);
        for (String i : s) {
            System.out.println(i);
        }

    }

2、Array转List

String[] string=new String[]{"s1","s2","s3","s4","s5"};

List<String> li= Arrays.asList(string);

System.out.println(li);