How to Master Any New Programming Language with Three Simple Exercises

A developer recounts his experience learning several new programming languages—JavaScript (with frameworks like Angular, React, Meteor, Node.js), Kotlin, Python—and describes his quest for a fast learning method that avoids the tedium of beginner tutorials.

He argues that introductory material often wastes time on basics such as variables, boolean expressions, and simple loops, which he finds boring, and notes the scarcity of resources aimed at intermediate developers.

To address this, he creates a short checklist of practical exercises for each new language, allowing him to focus on core syntax and language features.

Exercise 1: Print "Hello World"

This classic, simple task helps the learner understand how to compile and run a program, produce basic output, manage line endings, and handle special characters such as commas and semicolons.

Beyond the greeting, developers can experiment by printing the current date, their name, age, or other values to discover additional language nuances.

Exercise 2: Compute Circle Area and Perimeter

The program reads a user‑provided radius, calculates the circle’s area and circumference, and displays an error message for invalid input.

This exercise covers handling user input, conditional logic, basic arithmetic, string and variable printing, and defining constants. It also encourages exploring further calculations like square roots, random number generation, and floating‑point math.

Exercise 3: Print Even Numbers from User Input

By reading a series of numbers and outputting the even ones, this task teaches comparison operations, the modulo operator, and loop constructs.

It also prompts thinking about uniqueness without explicit loops, sorting numbers, and becoming comfortable with new language syntax that may feel unfamiliar at first.

The author invites readers to share their own best practices for learning new languages and to provide feedback on the presented examples.