J2SDK的命令可以分为6类：基本命令、RMI(远程方法调用命令)、【 】、安全控制命令、Java IDL和RNR-IIOP命令、Java Plug-in。
参考答案：国际化命令
解析：不需要J2SDK自带的各种命令的具体形式，但应知道大概分为哪6类。参考一下J2SDK的文档或直接在命令行输入命令名得到命令及其选项的具体说明；我们最好应掌握6类命令中的第1类：基本命令的用法和功能。
Kim: What do you want to do in the future, Bob? Bob: I want to become a well-known writer. 小题1: Kim: I want to be a singer. I enjoy singing very much. Bob: I always hear you sing in your classroom and in the dormitory. Kim: You know, practicing is very important. My teacher always asks me to practice as much as possible. Bob: 小题2: Kim: Three hours a day on weekdays and six hours a day on weekends. Bob: Do you think it is boring to practice singing every day? Kim: 小题3:Singing is a great pleasure for me. I have entered for the “Future Star Cup” singing contest. It will be held next week. Bob: Do you think you will win in the contest? Kim: Yes. Before I entered for this contest, I had already taken part in many singing contests, and I had won some prizes. I’m very confident about myself. By the way, I’ve heard that our school held a composition (作文) contest last week. 小题4: Bob: No. I didn’t think I would win it. I don’t practice writing compositions much, you know. Kim: You should write more and take every chance to practice, or your wish to become a great writer will not come true. Bob: 小题5: Kim: You’re welcome.
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