Packages allow us to split code into namespaces. Any file may begin with a package declaration:

    package com.packt.myproject 
    class Foo 
    fun bar(): String = "bar" 

The package name is used to give us the fully qualified name (FQN) for a class, object, interface, or function. In the preceding example, the class Foo has the fully qualified name com.packt.myproject.Foo and the top level function bar has the fully qualified name of com.packt.myproject.bar.