December 2001
Intermediate to advanced
520 pages
13h 42m
English
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Object Inheritance
One of the ways in which objects make programming faster is the ability to use one object to create a second object with expanded variables and functions. This is referred to as object inheritance.
Going back to the Human example, if the Human class has the attributes gender, height, weight, and birth date and it has the methods eating and sleeping, you could create another class called Adult that is an extension of Human. Along with the aforementioned variables and functions, an Adult object might also have the attribute of married and the method of working. As a rule, the child of a parent class inherits all the properties of the parent and then adds some new ones.
To make a child class from a parent, you use the extends ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.