How to parse the string into map

Question

have a string like A=B&C=D&E=F, how to parse it into map?

Answer 1

Split the string (either using a StringTokenizer or String.split()) on '&'. On each token just split again on '='. Use the first part as the key and the second part as the value.

It can also be done using a regex, but the problem is really simple enough for StringTokenizer.