Top 15 Courses to Learn System Design and Software Architecture in 2025 - Best of Lot

Software design or System design is one of the tricky concepts to master. You can quickly learn a programming language like Java or Python, but creating software using that programming language is a totally different thing. That's where software design and coding skills come to the rescue. It's actually an art to structure your program, design your modules, specify boundaries and interactions with other parts of the system so that they are easier to read, maintain, and flexible to change. It's one of the most essential skills for a software developer but often gets ignored. If you look for an online course to learn Software design and architecture, you won't find many, forget about good ones.

Top 10 Online Courses to Learn Data Structure and Algorithms in 2025 - Best of Lot

Hello guys, In the past, I have shared a lot of useful resources like books and tutorials to learn Data Structure and Algorithms for both beginners and experienced programmers. I have also shared a lot of Data Structure and Algorithmic interview questions like this and their solutions in Java. Still, I have got continuously queries about excellent online courses to learn Data Structure and Algorithms in Java. Even though the topics are completely independent with the programming language, Java developer definitely likes the online courses which teach Data Structure and Algorithms in Java, and that's why my recent post about best algorithms courses, which includes algorithms courses from JavaScript and Python didn't impress my readers.

Java Program to find Armstrong numbers with Example

Armstrong number Example in Java
How to check if a number is an Armstrong number or not? or write a Java program to find Armstrong's number? This is a common Java interview question asked on-campus interviews and fresher-level interviews. This is also a popular Java programming exercise on various schools, colleges, and computer courses to build programming logic among Students. An Armstrong number is a 3 digit number for which the sum of cube of its digits is equal to the number itself.

How to Find Missing Number in a Sorted Array in Java [Solved]

Today's coding problem is not very new, it's an age-old classic Programming interview Question. You have a sorted array containing n - 1 unique number starting from 0 to n - 1. There is only one number missing in this range and you need to find that out. I mean you need to write a Java method to find the missing number and print its value in the console. Some of you might have seen this question before, but if you have not been asked this question before, what is the first approach comes into your mind to solve this question? Since only one number is missing, many programmers come up with the approach of iterating over the array, and comparing each element with the expected one like the first element should be 0, the second element should be 1, and so on.

How to check if strings are rotations of each other in Java? String Rotation Example Solution

String-based algorithmic questions are very popular in Java interviews e.g. checking if two String is the anagram of each other (see), or checking if given String is a palindrome (see), or just finding permutations of given String (see). One of such popular String-based interview questions is about to check if two Strings are a rotation of each other in Java. In order to solve this question, you should know what is String rotation? Well, A string is made of characters and you just rotate the String around any character like "programming" will become "ingprogramm" if we rotate the String on the trailing character 3 times.

How to check if Array contains given Number or String in Java [ Linear Search vs Binary Search]

Hello guys, one of the common coding questions from Java interviews is how to test if an Array contains a certain value or not? This is a simple question, but sometimes interview pressure makes candidates nervous. In this article, you'll learn how to solve this problem using different approaches. Since an array in Java doesn't have any inbuilt method for searching values, interviewers prefer to ask this question, to see how a candidate deals with such a situation. If you have good knowledge of Java API, then you will immediately come to know that there are alternatives available like using the binarySearch() method of Java Java .util.Arrays class or taking advantage of ArrayList contains method by first converting your array to ArrayList.

Top 6 Courses to Learn Google Cloud Platform or GCP in 2025 - Best of Lot

Hello folks, if you want to learn Google Cloud Platform in 2025 and looking for the best resources like online courses, books, websites, and tutorials then you have come to the right place. Earlier, I have shared the best free Google Cloud platform courses and best websites to learn GCP, in this article, I am going to share the best online courses to learn Google Cloud Platform in 2025. The Google Cloud Platform, or GCP, is similar to Amazon Web Services and is a public cloud vendor catering to businesses and enterprises. Customers can use the Google Cloud Platform to access the computer resources in Google's data centers present across the world. It is offered either as a free addition or on a pay-per-use basis.

Top 5 Free Courses to Learn NFT (Non Fungible Tokens) in 2025 - Best of Lot

Hello folks, if you want to learn about NFT in 2025 or want to create and sell your own NFT and looking for free resources then you have come to the right place. Earlier, I have shared the best Blockchain courses, best Ethereum Courses, and best courses to learn NFT (Non-Fungible Tokens), but a lot but then many of you ask for free courses and I decided to put together a list of the best free NFT courses you can join to learn everything about NFT, create Non Fungible tokens and sell them on different platforms like OpenSea. Before we get into the best free courses that you can use to learn more about NFT, you need to know the basics.

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