Hoozifachi:Java

Java2D
Official Java API

[Java2D]

Tutorials
[Space Invaders 101]

[Space Invaders 102]

Support for Hardware-Accelerated Rendering Using OpenGL
silent (t is lowercase)

verbose (T is capital)

JOGL
OpenGL Bindings for Java

https://jogl.dev.java.net/

Tutorials
Space Invader 103

LWJGL
Java access to OpenGL and OpenAL

http://lwjgl.org/

Tutorials
SpaceInvaders 104

LWJGL Pong Tutorial

Java OpenGL Demos with LWJGL

GTGE
Golden T Game Engine

http://www.goldenstudios.or.id/products/GTGE/index.php

Tutorials
GTGE Tutorial

Articles
Smooth Moves Smooth java animation techniques.

TimingTest

2D Game Physics Tutorial