Learning made easy
Why I Switched to Virtual Threads (And Why You Should Too) In a recent high-traffic Spring Boot application I worked on, we hit a frustrating wall: our servers were crashing under load, yet our CPU usage was sitting at only 20%. The problem? We had exhausted our Tomcat thread pool. Our “Platform Threads” were stuck…
Read More “Java Virtual Threads (Project Loom) in Real Enterprise Applications” »
Character Counter Tool 📊 Character Counter Tool Paste or type your text to get detailed character analysis Clear Total Characters 0 Without Spaces 0 Words 0 Lines 0 📋 Detailed Statistics Spaces 0 Special Characters 0 Line Breaks 0 Numbers 0 Letters 0 Uppercase Letters 0 Lowercase Letters 0 Sentences 0 Paragraphs 0 Average Word…
Java Sealed Classes Recondite yet practical, sealed classes give you a way to declare a fixed set of permitted subclasses, enabling safer APIs, exhaustive pattern matching and clearer domain modeling. By constraining inheritance you reduce unintended extensions, simplify reasoning about behavior, and enable compiler/JVM optimizations that can improve memory utilization and performance. Use cases include…
Stop Memorizing Definitions: How to Actually Pass a Java Interview The “Senior Dev” Factor: Performance vs. Readability Before we dive into the top 50 questions, you need to understand what interviewers are actually looking for in 2025. It is rarely just “getting the right answer.” It is about knowing the trade-off between writing clean code…
Read More “Top 50 Java Coding Interview Questions and Answers (2025 Updated)” »
Over recent Java versions, you might have noticed the introduction of the Java record class, a compact and immutable data carrier designed to simplify your code. Unlike traditional classes, records automatically provide implementations for equals and hashCode, saving you time and reducing errors. You’ll find that records come with a default constructor and default values…
Read More “Java Record Class Explained: Simple, Immutable Data Carriers” »
“The Performance Trap: “” + i vs String.valueOf(i)“ Most tutorials tell you that String s = “” + i; is the easiest way to convert an integer. While it is the most readable, my benchmarks show it is dangerous inside high-frequency loops. I ran a test converting 10 million integers. Here is what happened: Why?…
Read More “Java int to String Conversion: Performance Benchmarks & Memory Pitfalls” »
Mastering String to Integer Conversion in Java: A Comprehensive Guide Java convert string to int : Converting strings to integers is a fundamental task in Java programming. Whether you’re processing user input, reading files, or handling API responses, knowing how to convert string to int Java efficiently is crucial. In this guide, we’ll explore multiple…
Read More “String to Integer Conversion in Java | Java convert string to int” »
Converting PDF to JSON in Java Top 3 ways: A Beginner’s Guide Introduction: In today’s digital era, handling data in various formats is crucial for developers. One common task is converting PDF files into JSON format, PDF to JSON conversion which is widely used for data interchange. In this blog post, we’ll explore how to…
Read More “Converting PDF to JSON in Java Top 3 ways to code:” »
In this blog, we are going to see what are the objectives of system performance. System performance objectives are the ways to identify proper performance for your application. What is System Performance Objective A system performance objective is a goal that is set for the performance of a system.This objective can be based on a…
In this blog post, we will see Performance Principles of Software Architecture. We know how the performance problems happens in the first place, like Queue Building etc. Now we will see what are the principles of performance. If you missed about the performance issues, refer to this one for more information. In short, these are…
Read More “Performance Principles of Software Architecture” »