Which Programming Language Will Dominate the Future? A Data‑Driven Analysis

Introduction

The author explains a personal habit of reading programming‑related Q&A to avoid common pitfalls and mentions recent curiosity about whether certain languages might replace others.

Key Questions

Is there a technology that will replace JavaScript?

Can Kotlin replace Java?

Will Rust replace C++?

Among D, Go, and Rust, which has the greatest potential to replace C?

What will be the programming language of the future?

Background and Benchmark Data

The article references a widely shared benchmark table that scores programming languages based on the Computer Language Benchmarks Game (CLBG). The table measures execution time, energy (joules), and memory usage for ten standard algorithmic problems.

The CLBG corpus and test methodology are shown below.

Results for the benchmark suite (energy, time, memory) are presented in the following figures.

A specific test (fasta) is illustrated here.

The benchmark also categorises languages by paradigm (functional, imperative, object‑oriented, scripting) and implementation type (compiled, interpreted, VM‑based).

Aggregating the data yields the final comparison table.

The analysis concludes that, ignoring memory usage, C performs best in energy and speed, followed by Rust and C++. However, none of these languages support full object‑oriented programming, which many companies still require.

Search‑Engine Trend Analysis

Using Google Trends (limited to five keywords), the author compares the popularity of C, C++, Rust, and Java over time.

After discarding Java, the next set of languages examined are Kotlin, JavaScript, Python, and Go.

Python shows a dramatic rise and becomes the market‑share leader, while Java and JavaScript hold the second positions.

The author notes that the analysis is based on a single search engine and may not capture the full picture.

TIOBE Index Comparison

The TIOBE company provides an independent ranking of programming languages based on multiple search‑engine data sources.

The latest TIOBE results closely match the Google Trends findings: Python now leads, while C remains the second most common compiled language.

A historical performance chart shows Java’s long‑term dominance and Python’s recent surge.

Future Outlook

The article argues that while Python currently enjoys the highest popularity, emerging languages such as Rust may eventually overtake it due to superior performance and growing industry adoption (e.g., by Amazon and Facebook).

Nevertheless, the author concludes that predicting a single “future language” is meaningless; the choice should depend on specific project requirements, much like selecting the appropriate screwdriver for a particular screw.

In summary, no programming language can claim universal superiority; developers must match language features, strengths, and weaknesses to their concrete needs.