Splitting A String While Keeping Some Spaces

I am trying to split a string into a String[] tokens array to declare variables for an object; however, I'm having an issue getting the string to tokenize correctly. Here's an example of the input:

a : 100 : John Smith : 20 Main St.
a : 101 : Mary Jones : 32 Brook Rd.

Here is the basic code I have now, to properly sort each line of text, etc. (without the split() method):

Java Code:

while (scanner.hasNextLine()) {
currentLine = scanner.nextLine();
lineScan = new Scanner(currentLine);
if (currentLine.startsWith("/") || currentLine.trim().isEmpty())
continue;

[Code] ....

I was able to eliminate the comments and identifiers from the text by trimming the first two characters of the string. For the split, I tried String[] tempArray = currentLine.split("s+"); however, that also took the spaces out of the addresses and names...so the results looked like this:

100
John
Smith
20
Main
St.

As you can see, it splits via space regardless, including where I replaced all the :'s with spaces. Is there any way to do this?