Pratiyush Prakash

Nov 24

Leetcode Top Interview 150 series solution approach in Java: Majority Element [EASY]

Data structure and algorithm are the building blocks for any software. And most tech companies expects interviewees to know these concepts and to test it they ask problems which could be solved using any specific data structure or algorithm. And Leetcode have humongous set of problems which could help in…

Java

3 min read

Java

3 min read

Nov 23

Leetcode Top Interview 150 series solution approach in Java: Remove Duplicates from Sorted Array I and II [EASY & MEDIUM]

Java

5 min read

Java

5 min read

Nov 22

Leetcode Top Interview 150 series solution approach in Java: Remove Element [EASY]

Java

3 min read

Java

3 min read

Nov 21

Leetcode Top Interview 150 series solution approach in Java: Merge Sorted Array [EASY]

Java

3 min read

Java

3 min read

Published in

Dev Genius

·Oct 5

Spring security basic auth setup tutorial

In this article we will cover how to build a secured spring boot application from scratch. So sit tight and let’s go through it. Generate spring boot starter project First of all we will go to Spring initializr and create our basic project. You can configure metadata, language, packaging etc. based on your requirement. …

Spring Boot

5 min read

Spring security basic auth setup tutorial

Spring Boot

5 min read

Dec 23, 2022

Getting Map directly from query using MyBatis in Spring boot

In this article I will cover simple way to get the map of unique identifier and object details directly from query using MyBatis in Spring boot. Problem statement Coming to the problem statement first. Let’s say you have a movie database and you want to create an API which takes a list…

Spring Boot

2 min read

Spring Boot

2 min read

Published in

Dev Genius

·Sep 12, 2022

Custom sorting and filtering for Angular material table

In this article I will covering how to create custom filtering and sorting for Angular material table. I am assuming you already the know basics of Angular and JavaScript. If not please go through it and then come back to this article later. https://angular.io/docs https://javascript.info/ Okay, so let’s jump right…

Angular

5 min read

Angular

5 min read

Published in

Dev Genius

·Jul 19, 2022

Improving service performance by utilizing caching and parallelization in Spring boot

Let’s imagine we have to create a service method which takes a list of search keys and returns a list of objects. If we start making Database calls in a loop for every search key and then aggregating the result to send it as a response. This will obviously be…

Spring Boot

4 min read

Spring Boot

4 min read

Published in

Dev Genius

·Jul 7, 2022

Sorting an array of object by multiple fields in Java and JavaScript

This is a sort article in which I will cover how can we sort an array of objects by multiple fields in Java using lambda function and in JavaScript using arrow functions. First let’s cover Java Let’s say we have an array of Employee objects. …

Sorting Algorithms

3 min read

Sorting an array of object by multiple fields in Java and JavaScript

Sorting Algorithms

3 min read

Published in

Dev Genius

·Jun 25, 2022

You should be aware of this if you are still using Stack Class in Java

Stack is very common and useful data structure which comes handy in dealing with many problems. In this article we will go through the pros and cons of using Stack class in Java and will explore if there are any alternatives to overcome the cons of Stack class. First of all let’s revise what is Stack? In computer…

Data Structures

4 min read

You should be aware of this if you are still using Stack Class in Java

Data Structures

4 min read