StringUtils.split（）返回空字符串？

Question

Java中的StringUtils.split函数可以返回空字符串作为输入，而不是空字符串吗？

Answer 1

According to Doc, NO. Only a null input string will return null .

There are three versions of StringUtils.split() :

Splits the provided text into an array, using whitespace as the separator

public static String[] split(String str)

Splits the provided text into an array, separator specified. This is an alternative to using StringTokenizer.

public static String[] split(String str, char separatorChar)

Splits the provided text into an array, separators specified. This is an alternative to using StringTokenizer.

public static String[] split(String str, String separatorChars)

Answer 2

No , it will not return empty String "" for non-empty String. i believe you are talking about string with zero length "" , not about null.