我的目的：想确定下面这段话出自哪本书，于是在google上搜索：
· ‘protected’ means all classes in the same package (like default) and sub-classes in any package can access the features. But a subclass in another package can access the protected members in the super-class via only the references of subclass or its subclasses. A subclass in the same package doesn’t have this restriction. This ensures that classes from other packages are accessing only the members that are part of their inheritance hierarchy.
这段话出自《DeclarationsandAccessControl(2)》这篇文章，而这篇文章好像出自一本叫做《SUN CERTIFIED PROGRAMMER FOR JAVA[tm] 2 PLATFORM 1.2》的书，请教大家：问1：是否有《SUN CERTIFIED PROGRAMMER FOR JAVA[tm] 2 PLATFORM 1.2》这本书？如果有，这本书是Sun公司出的吗？是否权威？问2：书名中的[tm]和[tm] 2是什么意思？问3：书名中的PlatForm 1.2的意思是：1.2平台，1.2平台是什么意思？问4：上面的那句话谁知道究竟出自哪本书？
谢谢大家。
· ‘protected’ means all classes in the same package (like default) and sub-classes in any package can access the features. But a subclass in another package can access the protected members in the super-class via only the references of subclass or its subclasses. A subclass in the same package doesn’t have this restriction. This ensures that classes from other packages are accessing only the members that are part of their inheritance hierarchy.
这段话出自《DeclarationsandAccessControl(2)》这篇文章，而这篇文章好像出自一本叫做《SUN CERTIFIED PROGRAMMER FOR JAVA[tm] 2 PLATFORM 1.2》的书，请教大家：问1：是否有《SUN CERTIFIED PROGRAMMER FOR JAVA[tm] 2 PLATFORM 1.2》这本书？如果有，这本书是Sun公司出的吗？是否权威？问2：书名中的[tm]和[tm] 2是什么意思？问3：书名中的PlatForm 1.2的意思是：1.2平台，1.2平台是什么意思？问4：上面的那句话谁知道究竟出自哪本书？
谢谢大家。
2.tm(正在审批中)是相关于圈R（注册商标）说的，所有商标上都有这个。
3.1.2指的是java 1.2版本。java有1.1，1.3，1.4，1.5，1.6版本的平台
4.楼主有什么问题？为什么要找那本书呢？
要学就学1.5吧。1.2是4，5年前的东东了。分数拿来