Initializion with Size

The Nintendo GameBoy had a screen resolution of 160 x 144. To store the value of each pixel1 you would need an array 23,040 items long.

To support this without you writing the word false 23,040 times, arrays can be made with just by giving a size and skipping the initializer.

boolean[] pixels = new boolean[23040];

So you have to say new followed by the type of element in the array, [, the size of the array and ].

1

The original GameBoy wasn't actually just black and white. It supported 7 shades of gray, so a boolean wouldn't technically to be enough to represent a pixel's state. You'd have to use something with at least 8 states, not just 2.