There are multiple ways of creating a ArrayList and adding a couple of items to it.
The usual way to do it:
List<String> normal = new ArrayList<String>(); normal.add("one"); normal.add("two"); normal.add("three");
Or you could use the double braces. The inner pair of braces creates a anonymous innner class
List<String> doubleBraces = new ArrayList<String>() {{ add("one"); add("two"); add("three"); }};
But I prefer to use a small static method that uses generics and varargs to accomplish the same thing.
public class Simple { public static <T> ArrayList<T> listOf(T... elements) { ArrayList<T> list = new ArrayList<T>(); for (T element : elements) { list.add(element); } return list; } }
And to use it you just write:
List<String> simple = Simple.listOf("one", "two", "three");
Nice blog! Will be interesting to follow. Keep up the good w0rk! 🙂