separating each word in a string even if they are not separated by spaces

[Norgy]

if we have this string : number of doses(1000mg/m2)
and i want to separate each word in a string
when i do this

        String doses = "number of doses(1000mg/m2)";
        String[] split = doses.split(" ");
        for(int i=0 ; i<split.length ; i++){
            System.out.println(split[i]);
        }

the output is :
number
of
doses(1000mg/m2)
but i want to separate each word so that the output is:
number
of
doses
(
1000
mg/m2
)

how can i do this??

[chaarmann]

Use a regular expression. It should match Whitespace-characters (so they get deleted in the result array) and word (or number) delimiters. Word delimiters are positions and no characters, so no character gets deleted inside the splitted array. You can match positions with regEx "lookahead" and "lookbehind "

This regex give you the wanted result:

String doses = "number   of doses(1000mg/m2)";
String regEx = "\\s+|(?=[\\(\\)])|(?<=[\\(\\)])|(?=(?<=\\d)\\D)";
String[] results = doses.split(regEx);
System.out.println("array:" + Arrays.asList(results));

gives:
array:[number, of, doses, (, 1000, mg/m2, )]