Splitting a String by number of delimiters

问题

I am trying to split a string into a string array, there might be number of combinations, I tried:

String strExample = "A, B";
//possible option are:

1. A,B 
2. A, B
3. A , B
4. A ,B

String[] parts;
parts = strExample.split("/"); //Split the string but doesnt remove the space in between them so the 2 item in the string array is space and B ( B)
parts = strExample.split("/| ");
parts = strExample.split(",|\\s+");

Any guidance would be appreciated

回答1:

To split with comma enclosed with optional whitespace chars you may use

s.split("\\s*,\\s*")

The \s*,\s* pattern matches

• \s* - 0+ whitespaces
• , - a comma
• \s* - 0+ whitespaces

In case you want to make sure there are no leading/trailing spaces, consider trim()ming the string before splitting.

回答2:

You can use

parts=strExample.split("\\s,\\s*");

for your case.

来源：https://stackoverflow.com/questions/53831649/splitting-a-string-by-number-of-delimiters