zwwcn

Just another WordPress.com site

collections.singletonMap

singtonMap and singletonList allow you quickly create an unmodifiable collection:

methodTakesAMap(Collections.singletonMap(key, value));

rather than this:

Map<KeyType, ValueType> m = new HashMap<KeyType, ValueType>();
m.put(key, value);
methodTakesAMap(m);

singletonList example:


List sampleList = collections.singletonList("theOnlyOption");
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: