Building a Complex Regular Expressions

I follow this way to build a very complex regular expression. But this has to be start from very small

• /v1/user  -  /(\\w*)/(\\w*)
• v1/203i03 -  /(\\w*)/(\\w*)
• v1 -   /(\\w*)/*(\\w*)

• /v1/user?name  -  /(\\w*)/(\\w*)(\\?*)(\\w*)
• /v1/user?name=don  -  /(\\w*)/(\\w*)(\\?*)(\\w*)(\\=*)(\\w*)

Java Code to Test the regular expression

private static void getEndPointUrl(String restUrlPattern,String urlToMatch) {
Pattern pattern = Pattern.compile(restUrlPattern);
Matcher matcher = pattern.matcher(urlToMatch);
System.out.println(restUrlPattern + " -- " +urlToMatch);
if (matcher.matches()) {
System.out.println("Matches");;
} else {
System.out.println("Not Matches");;
} }