A student wrote to me: “What is the most popular programming language? How many programming language a software developer must know? Please advice.”
Answer: There are different opinions on which programming language is the most popular. Based on what I saw using in universities and from discussions with people in the software industry, I think currently Java is the most popular. Many software companies are using Java as the main programming language. Next in popular is C++ based on a high numbers of job listing from software companies. If you know Java and C++ then you would do well in the industry.
- Blogs of Prof. John Vu, Carnegie Mellon University