Searching for opportunities to build your skill set as a freelancer? Learning a new programming language is a great way to improve your resume! Many companies seek to hire or contract coding experts for software development gigs.
What is Java?
Java is a methodical high-level programming language that allows you to build applications from the ground up. It’s a statically typed language, meaning it’s very rigid and must be compiled.
Java was first released in 1996 by Sun Microsystems. James Gosling created it as a general-purpose IT language that could be used to run server-side automation. The company launched it with the slogan, “Write once, run anywhere.” The Oracle Corporation acquired Sun Microsystems in 2010.
Since then, Java has become a valuable tool for creating applications and performing big data computing.
Here is an example of Java text in an Integrated Development Environment:
What’s it used for?
Because of its strict syntax and endless possibilities, Java is more suited to mobile app development, especially for Android devices. Java developers often work on lengthy projects in big, established industries that need dedicated apps for their users.
The language is useful for server-side programming, automated virtual operations, big data processing, and even programming hardware like smart devices. It’s the top language for virtual reality, continuous integration, DevOps, artificial intelligence, and application programming interfaces (API).
Well-known companies that use Java applications include Netflix, Spotify, Uber, Pinterest, Airbnb, and Amazon. Web application servers like Apache Tomcat and IBM WebSphere are based on Java.
Key features of Java:
Object-oriented programming (OOP)
Capable of multithreading
Requires class declarations
Supports dynamic loading and compilation
Used for server-side apps and back-end development
More simple and independent than C or C++
Secure and robust
Ideal for mobile applications, big data, and large-scale projects
Java developers must work within inflexible syntax constraints that require class declarations of all variables. As a class-based language, Java demands that data types must remain consistent within its code. The Java Virtual Machine (JVM) then converts the Source code into machine-readable data as bytecode.
Java has many precise requirements — even for the simplest functions — because you’re programming operations from the ground up. Every element needs to be meticulously approached.
The upside is that this gives you wider-ranging opportunities when creating an application. You can make something for standalone operation with cross-platform functionality because it has fewer dependencies. Plus, Java offers concurrency — capacity to work with multiple threads.
What’s it used for?
Object-based scripting language
Validates user inputs
Not easy to debug
Front-end development (and back-end development via Node.js)
Ideal for use in web browsers
OOPs: capable of processes like encapsulation, inheritance, and polymorphism
Essential for digital development: usable for front-end development (with a Java applet) and back-end development
Platform-independent: Cross-platform compatible and can run on servers or browsers
Easy to learn: Relatively simple to comprehend compared to other programming languages like Python
Advantageous tools: both programming languages offer immense value for aspiring developers
Advantages of Java
Object-oriented, so it’s easier to implement
Easier to learn than C or C++
Offers more security and error mitigation
Supports multiple inheritances and multithreading
Can run independently on nearly any platform
Better for creating apps for mobile operating systems
Easy to reuse code
Has automatic garbage collection
Requires less long-term maintenance
Involves a smaller set of commands
Easy to make in-line definitions
Better for client-side validation and input
Requires less memory than Java
Functions well with GUI features
Doesn’t require anything special to run code — whereas Java requires a JDK
Both languages have their benefits, but which offers more potential in the job market?
Want more help kicking your freelancing career into high gear? Join the MVP Match freelance network, where you can find the latest contract opportunities in the IT industry. We’ve connected many talented workers with the companies in need of their expertise — and we can do the same for you!