用选项卡拆分Java字符串

Question

Given that string is a String , what does string.split("[\\t]"); do? I don't understand what the brackets are for. Thanks!

Answer 1

string.split("[\\t]"); will split the string into an array of strings with a Tab being the separating character. The brackets are for defining a construct regex pattern or a character class, and with only one character they're actually not needed. Here is an example

Answer 2

It is the same as string.split("\\\\t"); but I guess some people find it easier to read.