Java Program: Luhn Algorithm to Validate Credit Card Number
Java Program: Luhn Algorithm to Validate Credit Card Number
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In this video, we will learn how to write a Java program to implement the Luhn Algorithm, which is commonly used to validate credit card numbers. The Luhn Algorithm (also known as the Mod 10 algorithm) is widely applied in payment systems and helps in detecting simple errors like mistyped or incorrect digits in a credit card number. By the end of this tutorial, you will clearly understand how to implement this logic step by step in Java.
Luhn Algorithm: https://en.wikipedia.org/wiki/Luhn_al...
In this video, you will:
Understand what the Luhn Algorithm is and why it is important
Learn the step-by-step working of the Luhn check
Implement the algorithm in Java using loops, conditionals, and arithmetic operations
Validate whether a given credit card number is valid or not
See the complete Java code explained in detail
Why learn this program?
The Luhn Algorithm in Java is an excellent exercise for understanding loops, conditionals, and digit manipulations . It shows how algorithms are applied to solve real-world problems. This problem also improves your ability to write clean and logical code, which is essential for coding interviews and technical assessments.
If you are preparing for Java algorithms , coding interviews , or just want to practice real-world programming exercises, this video is a must-watch.
Perfect for:
B.Tech / BCA students
AP Computer Science students learning Java
Beginners learning Java programming
Students preparing for exams or coding assignments
Anyone practicing array problems in Java
Developers preparing for coding interviews
Programming Language: Java
Level: Beginner-friendly
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Timestamps:
00:00 Introduction
00:30 Problem Description
00:45 Pseudocode & Explanation - Luhn Algorithm
09:23 Java code - Luhn Algorithm & Validate Credit Card Number
14:32 Dry run the code for Luhn Algorithm
21:49 Running & Testing the Java code for Luhn Algorithm
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