C# vs. Java: Which to Choose?

Written by Coursera • Updated on

Discover the key features of each language, along with real-world examples and how to start learning these languages today.

[Featured Image] A man using a wheelchair works at a desktop computer.

There are about 700 programming languages to choose from when venturing into the world of computer programming [1]. Among them, both C# (pronounced C sharp) and Java are popular options. After you’ve narrowed your choices down to these two, deciding which will be the most useful for you will depend upon what type of programming you want to pursue.

Let’s dive deeper into both C# and Java, discuss the features and examples of both languages, and help you decide which will be the most useful for you.

Understanding features of C# 

C# is an object-oriented and component-oriented programming language designed for maximum code reusability. Developed in 2000, the intent of C# is to be simple, general-purpose, and modern, receiving regular updates every few years to remain competitive with industry standards. As of June 2022, the current version of C# is 10.0 [2].

The language supports both strong and implicit variable typing making it flexible to your preferences. C# has automatic garbage collection, so you do not have to be concerned with manually managing memory or dealing with stale objects. Since C# has language interoperability with other .NET languages, anything written in C#, F#, or Visual Basic is available for use. That results in additional functionality available to you through external libraries and repositories.

When looking at C# versus Java syntax, you will find that C# is less verbose. You can say more with fewer lines, making it a little easier to read.

C# in action

Microsoft created C# and it can be used to make native Windows applications. It has a robust community you can draw from, and since Microsoft owns it, C# has first-class features and functionality on the Windows operating system.

C# is a general-purpose language, making it is a good choice for many projects. It’s a popular choice for dynamic websites and web applications, and it can take care of all parts of a Model, View, Controller style framework. As a result, it can make calls to a database, handle URL routing, and spit out HTML to the user’s web browser. C# can also be used to create interactive APIs if you want to provide data service to other developers or applications.

If you want to make video games, you’ll be happy to learn that C# is an industry staple. C# and C++ are the languages used for the Unity engine. Cuphead, Subnautica, and Genshin Impact were all made in Unity. CryEngine, Godot, and Stride engines also use C#.

Understanding features of Java 

Java is very popular for creating both client and server-side applications. It has a similar syntax to C and C++ but is easier to understand. It also has fewer low-level features since that functionality is handled automatically by the compiler and Java Virtual Machine. 

Users and developers alike enjoy Java’s built-in security features. Because compiled Java programs run on the Java Virtual Machine, the program is in a sandbox environment, keeping the user safe from any malicious code that makes its way into the program.

Java’s motto is “Write once, run anywhere.” Once compiled, a Java program can run on any machine with a Java Virtual Machine or JVM. Oracle, Java’s owner, has JVM versions for Windows, Linux, macOS, and Solaris (Oracle’s proprietary UNIX operating system).

Java in action 

The versatility of Java means it can be used to create almost anything. It can make desktop applications, mobile applications, games, website backends and servers, and can even run machines. Wikipedia uses Java for its article search and most stock trading platforms were created with it, as well. Alphabet, Meta, Twitter, and just about any big tech company you can think of all use Java in some way or another, and even the Mars rover control systems use Java. 

Learn C# and Java online 

Thanks to technology today, there are many different options for learning C# versus Java online. One option is to self-learn by using blogs, articles, Youtube videos, etc. It’s important to remember that you can spend all day studying the language, but the best way to learn to code is to dive in and start building. 

If self-learning is not appealing to you, you have several other options. First, you can earn your bachelor’s degree at a university. Software engineering and computer science are the two most common majors programmers pursue. Most potential employers will likely prefer a bachelor’s degree, but it’s not always required. 

Read more: Bachelor’s Degree Guide: Resources for Your Undergraduate Education

If college is not the best path for you, two other popular options for learning are enrolling in boot camps and completing certificate programs—you even have the option to do both.

Enroll in boot camps.

Bootcamps are an excellent option if you’re looking for a fast and intense way to learn C# and Java. These are best for those who can commit to a full-time, short-term intensive and prefer hands-on instruction. 

Bootcamps typically take place in person at the coding school offering the camp. You’ll have an instructor who can answer any questions you may have and help you overcome any challenges or mental blocks. Most bootcamps offer these intensives for several different programming languages, so whether you’ve decided to learn C# or Java, there’s a camp for you. A quick search of “coding bootcamps near me” should help you find the best option.

Certify your way to success. 

You can build a solid foundation or fine-tune skills in your chosen language with certificate programs. Coursera works with world-class universities and companies to offer certificate courses in C#, Java, and many other programming languages.

Once you've made an informed decision on which language you would like to pursue learning—C# versus Java, in this case—look for a certificate program that best suits your needs and get to work. Earning a certificate is an effective way to get the necessary training to prepare you to enter the workplace of your choosing.

Read more: What Are Certificate Programs?

Next steps

If you're unsure of which programming language to learn, online courses on Coursera can be a great way to determine which language fits your needs. Learn about the different programming fundamentals and how to apply them to real-life scenarios all at your own pace. Check out beginner-friendly courses like Introduction to C# Programming and Unity from the University of Colorado and Java Programming and Software Engineering Fundamentals Specialization from Duke University.



Introduction to C# Programming and Unity

This course is all about starting to learn how to develop video games using the C# programming language and the Unity game engine on Windows or Mac. Why use ...


(2,138 ratings)

101,095 already enrolled


Average time: 1 month(s)

Learn at your own pace

Skills you'll build:

Video Game Development, C Sharp (C#) (Programming Language), Unity (User Interface), Game Programming



Java Programming and Software Engineering Fundamentals

Explore a Career as a Software Engineer. Learn the basics of programming and software development


(13,688 ratings)

279,856 already enrolled


Average time: 5 month(s)

Learn at your own pace

Skills you'll build:

HTML, JavaScript, Cascading Style Sheets (CSS), Java Programming, Html5, Algorithms, Problem Solving, String (Computer Science), Data Structure, Cryptography, Hash Table, Programming Principles, Interfaces, Software Design

Related articles

Article sources

1. Career Karma. "How Many Computer Programming Languages Are There?, https://careerkarma.com/blog/how-many-coding-languages-are-there/#:~:text=The%20Short%20Answer,languages%2C%20including%20esoteric%20coding%20languages." Accessed June 14, 2022.

2. Microsoft. "What's new in C# 10, https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-10." Accessed February 22, 2022.

Written by Coursera • Updated on

This content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses and other credentials pursued meet their personal, professional, and financial goals.

Big savings for your big goals! Save $200 on Coursera Plus.

  • For a limited time, save like never before on a new Coursera Plus annual subscription (original price: $399 | after discount: $199 for one year).
  • Get unlimited access to 7,000+ courses from world-class universities and companies—for less than $20/month!
  • Gain the skills you need to succeed, anytime you need them—whether you’re starting your first job, switching to a new career, or advancing in your current role.