String和List间的相互转换

 参考
https://blog.csdn.net/sinat_27535209/article/details/80595404

public void test() {
//字符串转list<String>
String str = "asdfghjkl";
List<String> lis = Arrays.asList(str.split(""));
for (String string : lis) {
System.out.println(string);
}
//list<String>转字符串
System.out.println(String.join("", lis));
}