“拆分（regEx）”和“拆分（regEx，0）”之间的Java区别？(Java difference between “split(regEx)” and “split(regEx, 0)”?)

 使用split(regEx)和split(regEx, 0)之间有什么区别吗？ 
 
 因为输出是针对我测试的情况相同。 例如： 
 
String myS = this is stack overflow;
String[] mySA = myS.split(' ');
 
 导致mySA === {'this','is','stack,'overflow'} 
 
 和 
 
String myS = this is stack overflow;
String[] mySA = myS.split(' ', 0);
 
 也导致mySA === {'this','is','stack,'overflow'} 
 
 这里有“隐藏”的东西吗？ 还是需要了解.split(regEx, 0) ？ 

Is there any difference between using split(regEx) and split(regEx, 0)?
 
Because the output is for the cases I tested the same. Ex:
 
String myS = this is stack overflow;
String[] mySA = myS.split(' ');
 
results in mySA === {'this','is','stack,'overflow'}
 
And 
 
String myS = this is stack overflow;
String[] mySA = myS.split(' ', 0);
 
also results in mySA === {'this','is','stack,'overflow'}
 
Is there something "hidden" going on here? Or something else which needs to be known about the .split(regEx, 0)?

原文：https://stackoverflow.com/questions/29603365