As far as which specific character sets are available, your runtime determines the complete set. Every Java programming implementation, however, must support the following encodings.

至于哪些特定的字符集可用，您的运行时将确定整个字符集。

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A 64-bit runtime USES 64-bit Pointers (native address references), so the same Java object on 64-bit takes up more space than an object containing the same data on 32-bit.

位运行时使用64位指针(本机地址引用)，因此64位运行时中的相同对象会占用更多的空间。

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Reflection is commonly used by programs which require the ability to examine or modify the runtime behavior of applications running in the Java virtual machine.

反射被广泛地用于那些需要在运行时检测或修改程序行为的程序中。

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The Oracle E-Business Suite currently works with clients running Mac OS 9.0.4 with Macintosh Runtime for Java (MRJ) 2.2.3.

CNN: Oracle certifies Mac clients with E-Business Suite

This chart compares the performance of 12 VMs. Except for Apple Computer's Macintosh Runtime for Java (MRJ), all of the JVMs were tested on the same hardware and with the same Java application code.

CNN: New benchmark results show Java ready for prime time on servers