Kunal Singh @kunalsinghreal
Java Developer by Profession |🇮🇳Simple Living High Thinking🇮🇳| Siwan, Bihar, India Joined June 2020-
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Have you ever thought why gRPC calls are way faster than the REST call? Let's find it together. I am providing here a GitHub link to test communication between #grpc server and #grpc client using #Java ,#SpringBoot, #Java8. Comments and feedback are appreciated.#LetsConnect 👇
13 Software Design Principles Every Developer Should Know: 1. 𝐊𝐈𝐒𝐒 (𝐊𝐞𝐞𝐩 𝐈𝐭 𝐒𝐢𝐦𝐩𝐥𝐞, 𝐒𝐭𝐮𝐩𝐢𝐝): Design solutions as simply as possible. Avoid unnecessary complexity. 2. 𝐃𝐑𝐘 (𝐃𝐨𝐧'𝐭 𝐑𝐞𝐩𝐞𝐚𝐭 𝐘𝐨𝐮𝐫𝐬𝐞𝐥𝐟): Eliminate duplicate code. Centralize…
10 Best Design Patterns for Developers 1. Strategy 2. Decorator 3. Adapter 4. Observer 5. Builder 6. DAO 7. Command 8. Composite 9. State 10.Factory 11. Template 12. Proxy learn more on Grokking Microservices Design Patterns designgurus.io/course/grokkin…
5 examples of the Factory Pattern used in the JDK: 1. java.util.Calendar The Calendar class uses a factory method to create instances. Calendar calendar = Calendar.getInstance(); The getInstance() method hides the implementation details and returns a suitable Calendar…
Time and Space Complexities of Popular Sorting Algorithms: 1. 𝐒𝐞𝐥𝐞𝐜𝐭𝐢𝐨𝐧 𝐒𝐨𝐫𝐭 - Time: Best Ω(n²) | Average Θ(n²) | Worst O(n²) - Space: O(1) 2. 𝐈𝐧𝐬𝐞𝐫𝐭𝐢𝐨𝐧 𝐒𝐨𝐫𝐭 - Time: Best Ω(n) | Average Θ(n²) | Worst O(n²) - Space: O(1) 3. 𝐁𝐮𝐛𝐛𝐥𝐞 𝐒𝐨𝐫𝐭 -…
Circuit Breaker Pattern Explained: The circuit breaker pattern is a fundamental design strategy to bolster system resilience and prevent disruptions. Inspired by electrical circuit breakers, this technique is a proactive safeguard to prevent system overloads and ensure…
How is data sent over the network? Why do we need so many layers in the OSI model? The diagram below shows how data is encapsulated and de-encapsulated when transmitting over the network. 🔹 Step 1: When Device A sends data to Device B over the network via the HTTP protocol, it…
Top 6 Multithreading Design Patterns You Must Know
Here is a step-by-step process to pick apart any low-level design question. A post based on your experience level. ----- 𝑆𝐷𝐸 1+ ----- 𝟏. 𝐒𝐂𝐎𝐏𝐄 𝐓𝐇𝐄 𝐏𝐑𝐎𝐁𝐋𝐄𝐌 As you speak with the interviewer, you may list 5-10 requirements for the question. You cannot…
As a senior Java developer, Don't just stay on core java , please stay updated and learn : 1. Cloud-native development, including microservices, serverless computing (AWS Lambda, Azure Functions), and tools like Kubernetes, Istio, and Helm. 2. Reactive programming using…
Simple explanations for SQL Joins.
What API limits (quick overview)
API Arch Style 🔥🔥
Top 10 Design Patterns for Developers 1. Strategy 2. Decorator 3. Adapter 4. Observer 5. Builder 6. DAO 7. Command 8. Composite 9. State 10.Factory 11. Template 12. Proxy learn more on Grokking Microservices Design Patterns designgurus.io/course/grokkin…
My newsletter recently crossed 50,000 subscribers. Here are the 10 most-read articles: 1. LeetCode was HARD until I Learned these 15 Patterns: blog.algomaster.io/p/15-leetcode-… 2. How I Mastered Data Structures and Algorithms: blog.algomaster.io/p/how-i-master… 3. System Design: What is…
SQL JOINS - quick sheet
If you’re working with message queues and events, don’t ignore this interview question: 👉 “How to handle request-response communication with message queues?” First of all, we need to understand why this is needed. With a message queue, you can let two services talk to each…
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399 Followers 578 Following Can learn to exit Vim, if needed ;) Building @frontenddevsite Github - https://t.co/6doTLSNNJQ
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