We were in Cape Cod, and one of my boys wanted to go kayaking. There were very few rental places still open, but Cape Cod Waterways was open, and only 10 minutes away from where we were staying, so we ended up kayaking on the Swan Pond River, up to Swan Pond (the Swan Pond in Dennis, by Route 134)....
Arrays.sort( aryNums ); First you type the word Arrays, then a dot. As soon as you type a dot, NetBeans will display a list of things you can do with arrays. Type the word sort. In between a pair of round brackets, you then put the name of the array you want to sort.
When you have an Array or of types such as string or integer that already support IComparer, you can sort that array or list without providing any explicit reference to IComparer. In that case, the elements of the array are cast to the default implementation of IComparer (Comparer.Default) for you.