Hot technologies to learn for Java developers

Question

Q: Hot technologies to learn for Java developers

Answer 1

For web case application development:
- GWT, JEE, JPA, JMS, JTA, Hibernate, etc

For client server applications:
- Swing, SWT, etc

For micro devices:
- Java ME, java TV, etc

For computer graphics:
- java 2D, JOGL, JMF, etc