Exercise : Quick initialization syntax

Which of the following choices is the correct syntax for quickly declaring/initializing an array of integers to store a particular list of values? We didn't get to this in lecture -- check the slides or chapter 7 in the book.

1. int[] a = {17, -3, 42, 5, 9, 28};
2. int a {17, -3, 42, 5, 9, 28};
3. int[] a = new int[6] {17, -3, 42, 5, 9, 28};
4. int[6] a = {17, -3, 42, 5, 9, 28};
5. int[] a = new {17, -3, 42, 5, 9, 28} [6];