Update Object with Object Methods

This section describes the concept of updating object with object methods.

Another concept of Object-Oriented programming is that objects can be updated with object methods.

In procedural programming, function arguments are passed by values. Functions can not easily update any given data objects.

As a hybrid programming language, H built-in classes provide functions to maintain procedural programming behaviors. For example,

# create 2 "integer" objects
i = integer(1);
j = integer(2);

# call "integer" class function add()
# it returns a new "integer" object to "k"
# "i" and "j" are not updated
k = integer.add(i,j); 

# same as k = integer.add(i,j);
k = i + j; 

To support object-oriented programming, H built-in classes provide additional object methods that allows you to update objects. For example,

# create 2 "integer" objects
i = integer(1);
j = integer(2);

# call object method increaseWith() on "i"
# "i" gets updated.
# no new object created
i.increaseWith(j); 

Last update: 2017.

Table of Contents

 About This Book

 Introduction of H Language

 Syntax

 Data Types

 Variables

 Expressions

 Statements

 "boolean" Data Type

 "integer" Data Type

 "string" Data Type

 "real" Data Type

 "array" Data Type

 Source Code Packages

 Classes and Objects

Object Oriented Programming

 What Is Object-Oriented Programming

 Objects Are Created from Classes

 Literal Is Special Form of Object Creation

 Dot (.) Expression to Access Object Members

Update Object with Object Methods

 Inheritance - Object Attachments

 Encapsulation - Private Members

 References

 PDF Printing Version