Programming Languages

What is programming, really?

How languages actually differ

Almost every language decision comes down to these three. The tags on each language below use this vocabulary.

The same program in four languages

A counter class, a loop, and a print — the same logic in each. Watch what changes: how types are declared, how blocks are marked, how much ceremony wraps the idea.

class Counter:
    def __init__(self):
        self.count = 0

    def bump(self):
        self.count += 1
        return self.count

c = Counter()
for _ in range(3):
    print(c.bump())

class Counter {
  constructor() {
    this.count = 0;
  }

  bump() {
    return ++this.count;
  }
}

const c = new Counter();
for (let i = 0; i < 3; i++) {
  console.log(c.bump());
}

class Counter {
    private int count = 0;

    public int bump() {
        return ++count;
    }
}

public class Main {
    public static void main(String[] args) {
        Counter c = new Counter();
        for (int i = 0; i < 3; i++) {
            System.out.println(c.bump());
        }
    }
}

#include <iostream>

class Counter {
    int count = 0;
public:
    int bump() { return ++count; }
};

int main() {
    Counter c;
    for (int i = 0; i < 3; i++) {
        std::cout << c.bump() << std::endl;
    }
}

Same idea, four dialects. Python says it in 11 lines with no type names; Java needs a class wrapper and a declared type on everything. Neither is "better" — the ceremony Java charges you buys errors caught before the program ever runs.

Which language for which job

Grouped by what you want to build, not by family tree. Where TechForge teaches it, there's a link — where another section covers it, that link goes there instead.

Where the code actually gets written

Before the language choice, you need somewhere to type and a way to see what your program did. Two tools cover almost all of it.

Compiled or interpreted, static or dynamic — every language is a different set of trade-offs. Five full tracks are live: Python, JavaScript, TypeScript, Java and C++.

What else you'll need

Knowing a language is one piece. These live in other sections of TechForge, and every one of them outlives whichever language you pick first.