Initialization of an ArrayList in one line

Question

I wanted to create a list of options for testing purposes. At first, I did this:

ArrayList places = new ArrayList();
places.add(\         


        

Answer 1

With Eclipse Collections you can write the following:

List list = Lists.mutable.with("Buenos Aires", "Córdoba", "La Plata");

You can also be more specific about the types and whether they are Mutable or Immutable.

MutableList mList = Lists.mutable.with("Buenos Aires", "Córdoba", "La Plata");
ImmutableList iList = Lists.immutable.with("Buenos Aires", "Córdoba", "La Plata");

You can also do the same with Sets and Bags:

Set set = Sets.mutable.with("Buenos Aires", "Córdoba", "La Plata");
MutableSet mSet = Sets.mutable.with("Buenos Aires", "Córdoba", "La Plata");
ImmutableSet iSet = Sets.immutable.with("Buenos Aires", "Córdoba", "La Plata");

Bag bag = Bags.mutable.with("Buenos Aires", "Córdoba", "La Plata");
MutableBag mBag = Bags.mutable.with("Buenos Aires", "Córdoba", "La Plata");
ImmutableBag iBag = Bags.immutable.with("Buenos Aires", "Córdoba", "La Plata");

Note: I am a committer for Eclipse Collections.