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Program Ruby Tutorial

HackerRank – 30 Days of Code – Day 6: Let’s Review – Ruby Program

Objective Today we’re expanding our knowledge of Strings and combining it with what we’ve already learned about loops. Check out the Tutorial tab for learning materials and an instructional video! Task Given a string, S, of length N that is indexed from 0 to N-1, print its even-indexed and odd-indexed characters as 2 space-separated strings […]

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Program Ruby Tutorial

HackerRank – 30 Days of Code – Day 5: Loops – Ruby Program

Objective In this challenge, we’re going to use loops to help us do some simple math. Check out the Tutorial tab to learn more. Task Given an integer, n, print its first 10 multiples. Each multiple n x i (where 1<=i<=10) should be printed on a new line in the form: n x i = […]

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Program Ruby Tutorial

HackerRank – 30 Days of Code – Day 4: Class vs. Instance – Ruby Program

Objective In this challenge, we’re going to learn about the difference between a class and an instance; because this is an Object Oriented concept, it’s only enabled in certain languages. Check out the Tutorial tab for learning materials and an instructional video! Task Write a Person class with an instance variable, age, and a constructor […]

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Program Ruby Tutorial

HackerRank – 30 Days of Code – Day 3: Intro to Conditional Statements – Ruby Program

Objective In this challenge, we’re getting started with conditional statements. Check out the Tutorial tab for learning materials and an instructional video! Task Given an integer, n, perform the following conditional actions: If n is odd, print Weird If n is even and in the inclusive range of 2 to 5, print Not Weird If […]

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Ruby

HackerRank – 30 Days of Code – Day 2: Operators – Ruby Program

Objective In this challenge, you’ll work with arithmetic operators. Check out the Tutorial tab for learning materials and an instructional video! Task Given the meal price (base cost of a meal), tip percent (the percentage of the meal price being added as tip), and tax percent (the percentage of the meal price being added as […]

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Ruby

HackerRank – 30 Days of Code – Day 1: Data Types – Ruby Program

Objective Today, we’re discussing data types. Check out the Tutorial tab for learning materials and an instructional video! Task Complete the code in the editor below. The variables i, d,s ¬†and are already declared and initialized for you. You must: Declare 3 variables: one of type int, one of type double, and one of type […]

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Ruby

HackerRank – 30 Days of Code – Day 0: Hello, World. – Ruby Program

Objective In this challenge, we review some basic concepts that will get you started with this series. You will need to use the same (or similar) syntax to read input and write output in challenges throughout HackerRank. Check out the Tutorial tab for learning materials and an instructional video! Task To complete this challenge, you […]

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Tutorial

How to test CCAvenue Payment Gateway in localhost? (Avoid Error Code: 10002 Merchant Authentication failed)

In this tutorial, I am going to discuss how to test a CCAvenue payment gateway on your local system. Why this tutorial? To test CCAvenue in localhost. To avoid issues on the Live website. CCAvenue is one of the leading payment gateway providers in India, though their documentation is not up to the industry standard. […]

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Tutorial

Best Practices to Ensure Transaction Integrity in CCAvenue Payment Gateway

The following Best Practices are guidelines only. It is recommended that you consult with security experts with experience in your web environment to ensure that your security is appropriate for your needs. 1. Use a unique order number for each transaction attempt CCAvenue¬†system does not validate your order number for uniqueness. If you send the […]

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Program Tutorial

Complete list of CCAvenue Response code with description

CCAvenue Response Codes Name Description Type (length) order_id Unique ID sent by the merchant at the time of initiating the transaction. Alphanumeric (30) tracking_id Unique payment reference number generated by CCAvenue for each order. Numeric (12) bank_ref_no Reference number generated by the bank for the transaction. Alphanumeric order_status Status of the transaction. Alphabets (15) Success […]