compile time
2.The compile-time type of the initializer expression cannot be the null type.
3.If you try to call the wrong method for an object, you’ll get an error message at compile-time.
4.(The only time you won’t get a compile-time error is when x and y are boolean, in which case x = y is a legal expression, and in the above case, probably an error.)
5.Through the researching of different meta-object protocols, we present framework to construct distributed applications, which is based on a distributed programming model(DPM) and consists of compile-time reflection and run-time reflection.
6.If you forget, Java definitely improves on C++: you get a compile-time error telling you the variable might not have been initialized.
8.In Java, the result of this expression is not a boolean, and the compiler expects a boolean and won’t convert from an int, so it will conveniently give you a compile-time error and catch the problem before you ever try to run the program.
10.Article 61 A department shall examine, verify and totalize the draft final accounts of all units subordinate to it and then compile draft final accounts of its own and shall, within the prescribed time limit, submit such draft to the financial department of the government at the corresponding level for examination and verification.

