Java

What is Java, really?

If you join Infosys, TCS, Wipro, or any large Indian IT firm, you will write Java. Period. It runs Indian banking systems, airline reservations, and the entire Android operating system underneath. Verbose? Yes. Reliable? Absolutely.

Why learn it in 2026?

Java jobs in India number in the lakhs. Salaries are stable rather than spectacular. If you want a corporate IT job in a tier-1 city with a steady paycheck, Java + Spring Boot is the safest bet you can make.

What it looks like

// Spring Boot REST endpoint
@GetMapping("/users/{id}")
public User getUser(@PathVariable Long id) {
    return userService.findById(id)
        .orElseThrow(() ->
            new NotFoundException("User not found"));
}

▶ Try this code live →

What you can build with it

• Enterprise applications
• Android apps
• Banking systems
• Big data (Hadoop, Spark)
• Web backends

Major apps using Java

These are real platforms with public engineering posts confirming they use Java in production:

Featured platforms in our database

Tap any to see the full stack:

How to get started with Java in 5 steps

1. Install Java Download Java from the official site or use a package manager like Homebrew (Mac) or apt (Linux).
2. Set up your editor Install VS Code (free) and add the official Java extension for syntax highlighting and autocomplete.
3. Write Hello World Create a file, write your first 'Java Hello World' program, and run it from the terminal.
4. Build a small project Pick something tiny — a calculator, a to-do list, a number guessing game. Building beats reading.
5. Join a community Join the official Java Discord, subreddit, or Stack Overflow tag. Ask questions when stuck.

Should you learn it first?

Reasonable choice. Strong job market and a manageable learning curve. Make sure your goals match what Java actually builds.

Frequently Asked Questions about Java

Sources & References

Salary ranges, popularity data, and tech stack information on this page were verified using:

• Official Java documentation — Primary language reference and getting started guides
• Stack Overflow Developer Survey 2025 — Salary, popularity, and trend data
• GitHub Octoverse 2025 Report — Most-used languages and growth trends
• Naukri.com & LinkedIn India job listings — India salary verification (Bengaluru, Hyderabad, Mumbai, Pune)
• OneCity internal hiring data (2020–2026) — 650+ client projects across web, mobile, and AI work

Last verified: April 26, 2026. See an error? Email hello@onecity.co.in and we will fix it.

Compare Java with