Thinking in Java 第6章 访问权限控制 【Java 访问权限修饰词】

package access;//: access/Cake.java
// Accesses a class in a separate compilation unit.

class Cake {
public static void main(String[] args) {
Pie x = new Pie();
x.f();
}
} /* Output:
Pie.f()
*///:~

package access;//: access/Pie.java
// The other class.

class Pie {
void f() { System.out.println("Pie.f()"); }
} ///:~