"split(regEx)"和 "split(regEx, 0)"之间的 Java 区别？

Question

使用split(regEx)和split(regEx, 0)有什么区别吗？

因为输出是针对我测试过的情况。例如:

String myS = this is stack overflow;
String[] mySA = myS.split(' ');

结果在 mySA === {'this','is','stack,'overflow'}

和

String myS = this is stack overflow;
String[] mySA = myS.split(' ', 0);

还会导致 mySA === {'this','is','stack,'overflow'}

这里有什么“隐藏”的事情吗？或者关于 .split(regEx, 0) 需要了解的其他内容？

Answer 1

它们本质上是一样的。

引自String.split(String regex)文档:

This method works as if by invoking the two-argument split method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.