Java8 里字符串与数组的转换方式

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本文介绍了在编程中如何将字符串转换为数组以及如何将数组转换回字符串的方法。通过使用split()和join()函数，可以轻松地在字符串和数组之间进行转换。

String str = "a,b,c";
String[] arr = str.split(","); // [a, b, c]

String[] arr = {"a", "b", "c"};
String str = String.join("/", arr); // a/b/c

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rookie_garrick 2020.08.18
这个跟java8有啥关系啊
- hackzfy回复rookie_garrick 2020.08.28
  [reply]rookie_garrick[/reply][code=java] public static String join(CharSequence delimiter, CharSequence... elements)Returns a new String composed of copies of the CharSequence elements joined together with a copy of the specified delimiter. For example, String message = String.join("-", "Java", "is", "cool"); // message returned is: "Java-is-cool" Note that if an element is null, then "null" is added. Parameters: delimiter - the delimiter that separates each element elements - the elements to join together. Returns: a new String that is composed of the elements separated by the delimiter Throws: NullPointerException - If delimiter or elements is null Since: 1.8 See Also: StringJoiner [/code]