Java foundation knowledge required in J2ME

Java foundation knowledge required in J2ME

Author: Chen Yuefeng

From: http://blog.9cbs.neet/mailbomb

Nowadays, most people are from scratch J2ME. When learning J2ME, they always start learning from Java foundation, and now the Java foundation book is based on J2SE, this is caused by learning. Some unnecessary troubles, the following will make a simple description of the and unwanted Java basics used in J2ME:

Java foundation knowledge used in J2ME:

1. Java grammar foundation: including basic data types, keywords, operators, etc.

2. Object-oriented ideas: concepts, inheritance and polymorphism, etc.

3, abnormal handling

4, multi-thread

Java foundation knowledge that is not used in J2ME:

1, the use of Javac and Java command in JDK

2, many classes in Java foundation in J2ME, or the method in the class has made a lot of streamlined. So it is recommended to be familiar with the class library in J2ME.

3, Applet, AWT, SWING These knowledge is not available at all in J2ME.

Simply say so much, I hope that friends who learn J2ME can take less detours, and they hope that everyone will actively correct and supplement.