In case a package has sub packages, will it suffice to import only the main package? e.g. Does importing of com.myMainPackage.* also import com.myMainPackage.mySubPackage.*?
In Java, importing a package does not automatically import its sub-packages. When you use an import statement like import com.myMainPackage.*;
, it will import all the classes and interfaces in com.myMainPackage
, but it will not import anything from com.myMainPackage.mySubPackage
.
If you want to use classes from com.myMainPackage.mySubPackage
, you need to explicitly import that sub-package as well. You can do this by adding another import statement, like:
import com.myMainPackage.mySubPackage.*;
Alternatively, if you want to import all classes from both the main package and the sub-package, you would need to include both import statements:
import com.myMainPackage.*;
import com.myMainPackage.mySubPackage.*;
In summary, you must import each package and sub-package explicitly if you want to use classes from them.