Java creating instance of a map object

Question

Really simple question hopefully. I want to do something like this:

Map<String, String> temp = { colName, data };

Where colName, data are string variables.

Thanks.

Answer 1

Map is an interface. Create an instance of one the classes that implements it:

Map<String, String> temp = new HashMap<String, String>();
temp.put(colName, data);

Or, in Java 7:

Map<String, String> temp = new HashMap<>();
temp.put(colName, data);

Answer 2

@JohnGirata is correct.

If you're REALLY upset, you could have a look here http://nileshbansal.blogspot.com.au/2009/04/initializing-java-maps-inline.html

It's not quite what you're asking, but is a neat trick/hack non the less.