footprint

问题 This issue is important especially for embedded development. Exception handling adds some footprint to generated binary output. On the other hand, without exceptions the errors need to be handled some other way, which requires additional code, which eventually also increases binary size. I\'m interested in your experiences, especially: What is average footprint added by your compiler for the exception handling (if you have such measurements)? Is the exception handling really more expensive

问题 Is the memory space consumed by one object with 100 attributes the same as that of 100 objects, with one attribute each? How much memory is allocated for an object? How much additional space is used when adding an attribute? 回答1: Mindprod points out that this is not a straightforward question to answer: A JVM is free to store data any way it pleases internally, big or little endian, with any amount of padding or overhead, though primitives must behave as if they had the official sizes. For