Which Programming Language is Best for Robotics?

If you are looking to get into robotics software engineering, your first question is likely: “What language should I learn?”

The truth is, there isn’t just one right answer. Different layers of a robotics stack require different tools. But there are three giants that dominate the industry: C++, Python, and Java.

1. C++: The Industry Standard for Speed

When an autonomous car needs to hit the brakes because a pedestrian stepped into the road, it can’t afford to wait a fraction of a second for “garbage collection” or script interpretation.

C++ is the undisputed king of high-performance, real-time robotics. It runs incredibly fast and allows you to interface directly with the hardware. Most of the Robot Operating System (ROS), the backbone of modern robotics software, relies heavily on C++.

2. Python: The Prototyper’s Dream

Python is the most accessible language and is heavily leveraged for Machine Learning (ML) and Artificial Intelligence (AI) in robotics. Because of libraries like TensorFlow, PyTorch, and OpenCV, Python is universally used for computer vision and high-level behavioral planning. It’s slower than C++, but it is infinitely faster to write and test.

3. Java: Fantastic Object-Oriented Foundations

Java strikes a balance. It’s safe, strictly typed, object-oriented, and generally faster than Python.

This makes Java a fantastic starting point for large engineering teams.

The FIRST® Connection

In fact, FIRST® Tech Challenge (FTC) and FIRST® Robotics Competition (FRC) primarily use Java for robot programming! Thousands of middle and high school students across the world learn industrial-grade software architecture, building complex autonomous routines using Java.

Participating in FIRST programs is arguably the best way to get real-world runtime experience. Many alumni who started programming FIRST robots in Java eventually migrate seamlessly up to C++ or Python in their professional careers.

Start coding, write bad code, fix it, and watch your robot come to life!