Swapnil Gupta articles - 25 total
How to deploy Containerized Spring Boot Application on AWS using CodePipeline
Requirements : 1.Aws Account Docker Aws codePipeline AWS ECS Dockerfile BuildSpec file
Understanding JWT Token in Spring Boot Security with Chat GPT AI
🚨 Tech Deep Dive: Spring Boot Security with JWTs - A Must for Developers with Chat GPT-4...
List in Java
Java List Interface Explained with Complex Example In Java, the List interface is a part...
Streams Interview questions in Java
Link to Blog: https://dev.to/swapnilxi/stream-in-java-4p27 10 easy question to crack next java 8...
How to import CSV data in spring boot to save in PostgreSQL: Spring Batch
This could be done using OpenCSV, Apache POI and Spring Batch if you have small amount of Data we...
SQL Query in Spring Boot
we will understand the usages by examples like one in the case of finding existing record through the...
Mockito example
Certainly! Here's an example of testing a private method and switch cases using only...
Arrays.fill in Java
Ever thought how to fill the whole array with same value in Java !? in CPP, we use memset or can...
Integer to String and String to Integer in Java
We can use value of : Alexander Nikiforov on website ( teamtreeHouse) on Oct 2, 2016 In...
ArrayList to Array Conversion in Java
https://codeahoy.com/java/How-To-Convery-ArrayList-To-Array/ Method 1- public static int[]...
LeetCode: Greatest Sum Divisible by 3
LeetCode Discussion class Solution { public int maxSumDivThree(int[] nums) { int res =...
Binary Search: Recursive and Iterative method
LeetCode discussion class Solution { // iterative public int search(int[] nums, int...
Stream in Java
Stream provides following features: Stream does not store elements. It simply conveys elements from...
Stacks in Java
Stack Implementation Stack class Arrays LinkedList Stack...
Tower of Hanoi: Recursion Problem
problem: three poles having disk in it , A-B-C, you have to move all disk from A to C using B as...
HashTables in Java
Hashtables? Hashset and Hashtable difference? use Cases implementation Array...
LEET Code 21 Days of Dynamic Programming
** Day 13** Minimum falling Path using hashmap Day 10 Airtmetic Slices Logic and other Solution:...
Challenge Platforms to Learn Java
Twitter Some Websites that can help you to improve your coding skills...
Introduction to Dynamic Programming
To know the Dynamic Programming or better understanding Recursion as pre-requisite is the...
Recursion 101
Recursion is always Notorious among programmers, also confusing for the new programmers and...
Buy and Sell Stocks-I and II
Problem link : https://leetcode.com/problems/best-time-to-buy-and-sell-stock/submissions/ Twitter |...
Intersection of Two Arrays - II
Leet Code Problem Link: https://leetcode.com/problems/intersection-of-two-arrays-ii/ follow: twitter...
Java HashMaps:5 Important things to getting Started
What is Hashing and What are Java HashMaps? When to use Java HashMaps? Application of HashMaps in...
Arrays | Must-known DSA Array Techniques
Webinar by Scalar and Naman Bhalla What are Arrays? *Linear Data Structure *A way to store data of...
Merge Sorted Array
Problem link: https://leetcode.com/problems/merge-sorted-array/ solution video:...