Ruby on Rails is a web framework (web application framework). Rails is written in Ruby and is under MIT License. This framework follows the model-view-controller (MVC) architectural pattern. It provides default structures for databases, web pages, and web services. Rails facilitates and encourages the utilization of web standards like XML (data transfer), HTML, JSON, CSS, and JavaScript (user and display interfacing). Basing on the MVC pattern, Rails has given emphasis on using other software engineering paradigms and patterns that are well known. This includes Do not Repeat Yourself (DRY), convention cover configuration (CoC), and active record patterns.

What is Java?

Java is a concurrent, object-oriented, and class-based language in computer programming. It is designed specifically for few implementations of dependencies. “Write once, run everywhere”(WORA) is the ability that it gives to applications developers wherein all Java code compilations can function on all types of platforms supporting Java without recompilation. This network application develops and delivers mobile apps, web content, games, and enterprise software.

Comparison

Ruby on Rails

The scripting language in Ruby on Rails and directly runs without compiling first and generating of byte code.

To import module or package, Rails uses require statement. External files are included in Ruby applications through require and load.

Variables are typed dynamically.

nil is the null value in Rails.

In Rails, everything is considered objects such as methods, numbers, and variables.

Member variables are all private.

No casting used because variables are typed dynamically and can be assigned to other type.

Defines method or class block with end keyword.

Constructor sets defaultMsg value; Rails provide initialize function to class instantiation.

Classes are instantiated through new class method.

With provisions of extending another class

Begin-rescue-ensure-end construct handles exceptions.

Java

Java apps require compiling before running.

The import statement in Java loads the package.

Variables are typed statically

null is the value for Java.

Classes are the only ones with objects.

Member variables have default package access which can be declared private, public or protected through identifiers.

Objects can be casted to other object types.

Uses braces in defining method or class block.

Class name is the constructor.

Class instantiated with new Java operator

With provisions of extending another class

Try-catch-finally construct handles exceptions.

Ruby on Rails and Java may have parallel features but Rails does not necessarily replace Java. Ruby is deliberately picked by Rail’s author because of huge interest. He thought that it would a shame for the world to miss out on this superb language.

Today, most developers affirm on Rails being handy. It is very versatile as a tool. One reason why Rails is popular nowadays because of its tech startups that is great for fast prototyping. Application developers can build Rails applications, upload it online and in just few hours, it will be ready for use. It doesn’t matter whether you learn Rails first than JavaScript. However, it is a fact that Rails can be learned easily. It was designed to bring happiness to programmers.

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