how to transform Map to List using google collections

Question

I have a map with strings, I want to transform it to a list of strings with \" \" as a key value separator. Is it possible using google collections?

Code example that I

Answer 1

Functional programming is cool, but in Java often adds complexity you really shouldn't be adding (as Java doesn't support it very well) I would suggest you use a simple loop which is much shorter, more efficient and eaiser to maintain and doesn't require an additional library to learn.

public static List mapToList(Map env) {
    List result = new ArrayList();
    for (Entry entry : env.entrySet())
        result.add(entry.getKey() + " " + entry.getValue());
    return result;
}

A simple test of code complexity it to count the number of symbols used. i.e. < ( , { = : . + @ Not counting close brackets.

plain loop 22 symbols.
functional approach 30 symbols.