java有关package的题目Which of the following statements is correct about Java package?A.If there is no packagestatement used,the current class will not be in any package.B.Package is a way to manage source code,eachpackage contains several “.ja

java有关package的题目
Which of the following statements is correct about Java package?
A.If there is no packagestatement used,the current class will not be in any package.
B.Package is a way to manage source code,eachpackage contains several “.java” files.
C.Using one “import”statement can include the classes from one or more packages.
D.A package can contain sub-packages.
求详解.

我选D感觉差不多