Why do package names start with com?

Why do package names start with com?

Naming Conventions Package names are written in all lower case to avoid conflict with the names of classes or interfaces. Companies use their reversed Internet domain name to begin their package names—for example, com. example. mypackage for a package named mypackage created by a programmer at example.com .

Why do app names start with com?

Because Android app technical names follow the same convention as Java packages do — that is the reverse domain name notation . Advantages include uniqueness and hierarchy. As a user, you should (almost) never see these technical names, but human-readable pretty names like “Quora” instead.

What does Com stand for in Java packages?

So com. prefix in package names means the same as .com suffix in domain names: “commercial”.

Why are package names reversed?

Reverse domain name notation (or reverse-DNS) is a naming convention for components, packages, types or file names used by a programming language, system or framework. Reverse-DNS names are a simple way of eliminating namespace collisions, since any domain name is globally unique to its registered owner.

Why do Java packages start with com or org?

4 Answers. According to Sun, packages should be namespaced according to the inverse of your domain name, and then followed by whatever you see fit. Most companies or organisations have a .com , or . org domain name, and hence most packages start with com. or org. .

Why do Java namespaces start with com?

By reversing the domain part in the namespace, you make it sortable; all names that belong to your little chunk of the namespace universe are sorted together. And last but not least, the TLD .com is the most popular TLD on the internet, so it’s used by more software developers than any other TLD.

How important is app name?

But what is even more important, an app name and logo is the first information you share with your potential user. That means that with a great app name you may immediately evoke positive feelings and start forming the desired attitude to your product and company in people’s mind.

Why do Java classes start with com?

The idea is to make sure all package names are unique world-wide, by having authors use a variant of a DNS name they own to name the package.

Why do Java projects start with com?

The convention is that a programmer in a given organization will start package names with their organization’s domain name, as a unique identifier — in reverse order. This prevents namespace clashes between code from different organizations (within the organization you’re on your own).

What is Com in package name in Java?

It’s just a namespace definition to avoid collision of class names. The com. domain. package. Class is an established Java convention wherein the namespace is qualified with the company domain in reverse.

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