Java类在某些父包中吗？

Question

I have package :

com.google.*.*.*

There may be many subpackages.

I have a Class foo.java

How to check if its inside the main package com.google

When I use Class.getPackage() , it gives only the whole package like this: com.google.util.domain.sup

Must I really use functions like : substring() , split() . Or is there a fancy way to check if it belongs to certain parent packages?

Answer 1

Packages are not hierarchical in Java. com.google.foo has nothing to do with package com.google . So if your goal is to check that a class is in a package, or one of its "sub-packages", then yes, String manipulation is your best bet.

Answer 2

Do you mean like...

if (getClass().getName().startsWith("com.google."))

if you need an exact match you can use

if (getClass().getPackage().getName().equals("com.google.util.domain.sup"))