Advanced Programming Techniques in D/

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Encapsulation

Encapsulation

Learn about encapsulation in this lesson.

We'll cover the following...

Introduction

All of the structs and classes we have defined so far have been accessible from the outside (main() and other functions in the program).

Let’s consider the following struct:

enum Gender { female, male }

struct Student {
    string name;
    Gender gender;
}

The members of that struct are freely accessible to the rest of the program:

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import std.stdio;



enum Gender { female, male }



struct Student {

    string name;

    Gender gender;



    this (string name,Gender gender) {

        this.name = name;

        this.gender = gender;

    }   

}



void main() {

    auto student = Student("Tim", Gender.male);

    writefln("%s is a %s student.", student.name, student.gender);

}

Such freedom is a convenience in programs. For example, the previous line was ...