java - Java中的默认访问修饰符是什么？

Question

如果我没有明确说明方法或实例变量的默认访问修饰符是什么？

例如:

package flight.booking;

public class FlightLog
{
    private SpecificFlight flight;

    FlightLog(SpecificFlight flight)
    {
        this.flight = flight;
    }
}

这个构造函数的访问修饰符是 protected 还是封装的？同一个包中的其他类，即flight.booking，可以调用这个构造函数吗？

Answer 1

来自 Java documentation

If a class has no modifier (the default, also known as package-private), it is visible only within its own package (packages are named groups of related classes — you will learn about them in a later lesson.)

在成员级别，也可以像顶级类一样使用public修饰符或no修饰符(包私有(private))，含义相同.

你可以在这里阅读全文(_{我最近写的}):

http://codeinventions.blogspot.com/2014/09/default-access-modifier-in-java-or-no.html