I need some Java inspiration

Question

Maybe because I'm running on empty, waiting for lunch, but I'm not feeling inspired.
So, I need some Java inspiration. What was the last Java-"thing" (anything, from a coding trick, to a class, package, tool, etc...) that made you say "giddy-up!"

Answer 1

> super cool stuff.
Another example from the book, but I'll write the Java-equivalent first.
List list = Arrays.asList(
    Arrays.asList(1, 0),
    Arrays.asList(0, 1, 2)
Collections.sort(list, new Comparator() { // sort by first element
    public int compare(Object o1, Object o2) {
        List list1 = (List) o1;
        List list2 = (List) o2;
        Integer a = (Integer) list1.get(0);
        Integer b = (Integer) list2.get(0);
        return a.compareTo(b);
List expected = Arrays.asList(
    Arrays.asList(0, 1, 2),
    Arrays.asList(1, 0)
assert list.equals(expected);Here's the Groovy equivalent:
def list = [ [1, 0], [0, 1, 2] ]
list = list.sort { a, b -> a[0] <=> b[0] } // sort by first element
assert list == [ [0, 1, 2], [1, 0] ]Oh, and I'm with duffymo. Spring is a blast.
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