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OpenCSV vs Apache Commons CSV vs SuperCSV
OpenCSV vs Apache Commons CSV vs SuperCSV
May 6, 2025
How to Iterate Over a JSONObject
How to Iterate Over a JSONObject: 3 Proven Methods (2024 Guide)
May 2, 2025
Fields in JSON Serialization
How to Exclude Fields in JSON Serialization (But Not Deserialization) Using @JsonIgnore
May 2, 2025
Gson Field Exclusion Without Annotations
Gson Field Exclusion Without Annotations: The Complete Guide
May 1, 2025
Upload Files and JSON in Postman
Upload Files and JSON in Postman: Complete Spring MVC Guide
May 1, 2025
Posted inBlog

OpenCSV vs Apache Commons CSV vs SuperCSV

Posted by By admin May 6, 2025
Continue Reading
Posted inBlog

How to Iterate Over a JSONObject: 3 Proven Methods (2024 Guide)

Posted by By admin May 2, 2025
Continue Reading
How to Fix a Spring Boot REST Controller Not Recognizing GET Requests

How to Fix a Spring Boot REST Controller Not Recognizing GET Requests

Posted by By admin February 21, 2025
If you're working on a Spring Boot application and your REST controller isn't recognizing GET requests, you're not alone. This is a common issue that developers face, often due to…
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How to Fix Spring WebFlux Controller Method Being Called Multiple Times When Adding a Security Filter

How to Fix Spring WebFlux Controller Method Being Called Multiple Times When Adding a Security Filter

Posted by By admin February 20, 2025
If you’re working with Spring WebFlux and notice that your controller method is being executed multiple times after adding a filter to the security chain, you’re not alone. This issue…
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How to Get the IP Address of the Current Machine Using Java

How to Get the IP Address of the Current Machine Using Java

Posted by By admin February 19, 2025
When developing distributed systems or networked applications in Java, determining the correct IP address of a machine can be challenging—especially on multi-homed systems. In many cases, a machine may have…
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Fixing JasperReports 5.6 XLS Export

Fixing JasperReports 5.6 XLS Export: Replacing Deprecated JRXlsExporter.setParameter

Posted by By admin February 19, 2025
If you’re upgrading to JasperReports 5.6+ and encountering deprecation warnings for JRXlsExporter.setParameter, this guide will help you migrate to the updated exporter API. The old JRExporter and setParameter methods are…
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Fixing JasperReports Compilation Error

Fixing JasperReports Compilation Error: “org/codehaus/groovy/control/CompilationFailedException”

Posted by By admin February 19, 2025
If you encounter the java.lang.NoClassDefFoundError: org/codehaus/groovy/control/CompilationFailedException error while compiling a JasperReports template, it means your project lacks the required Groovy library. Here’s how to resolve it: 1. Switch Report Language…
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Convert JDBC ResultSet to Java Objects

How to Convert JDBC ResultSet to Java Objects: Efficient Mapping Techniques

Posted by By admin February 18, 2025
Why Convert ResultSet to Objects? Clean Code: Avoid repetitive manual mapping. Scalability: Handle large datasets efficiently. Type Safety: Leverage Java’s object-oriented design. Method 1: Manual Mapping (Not Recommended for Large…
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Initialize an ArrayList in One Line

How to Initialize an ArrayList in One Line in Java: Best Practices & Examples

Posted by By admin February 18, 2025
Initializing an ArrayList in Java is a common task, but doing it concisely can save time and reduce boilerplate code. In this guide, you’ll learn the most efficient ways to…
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Java serialVersionUID: Why It’s Essential for Serialization

Understanding Java serialVersionUID: Why It’s Essential for Serialization

Posted by By admin February 18, 2025
If you’ve worked with Java serialization, you’ve likely come across the serialVersionUID field. But what is it, and why does it matter? This post demystifies serialVersionUID, explains its role in…
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Convert a String to an int in Java

How to Convert a String to an int in Java: A Comprehensive Guide

Posted by By admin February 16, 2025
Introduction to String-to-Integer Conversion in Java Converting a String to an int is a common task in Java programming, whether you’re processing user input, parsing files, or handling API responses.…
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Java Access Modifiers Explained: Public, Private, Protected, and Package-Private

Java Access Modifiers Explained: Public, Private, Protected, and Package-Private

Posted by By admin February 16, 2025
Introduction to Java Access Modifiers Access modifiers in Java define the visibility of classes, methods, and variables. They play a crucial role in encapsulation, ensuring that data is only accessible…
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Invalidate JSON Web Tokens (JWT)

How to Invalidate JSON Web Tokens (JWT) in Node.js: Secure Stateless Sessions

Posted by By admin February 15, 2025
The Challenge of Stateless JWT Invalidation JSON Web Tokens (JWT) are popular for stateless authentication in Node.js apps. But unlike traditional session IDs stored in cookies, JWTs are self-contained and…
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Automatically Extend JWT Expiration Without Compromising Security

How to Automatically Extend JWT Expiration Without Compromising Security

Posted by By admin February 15, 2025
Introduction: The JWT Expiration Challenge JSON Web Tokens (JWT) are widely used for stateless authentication in REST APIs. However, their fixed expiration time presents a dilemma: frequent reauthentication harms user…
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  • How to Iterate Over a JSONObject: 3 Proven Methods (2024 Guide)
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  • Gson Field Exclusion Without Annotations: The Complete Guide
  • Upload Files and JSON in Postman: Complete Spring MVC Guide

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Post You Might Like
OpenCSV vs Apache Commons CSV vs SuperCSV
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Posted by By admin May 1, 2025

Problem: Print numbers from 1 to 100. For multiples of 3, print "Fizz"; for multiples of 5, print "Buzz"; for multiples of both 3 and 5, print "FizzBuzz.".

Copy
FizzBuzz:

for (int i = 1; i <= 100; i++) 
    System.out.println(i % 3 == 0 ? (i % 5 == 0 ? "FizzBuzz" : "Fizz") : (i % 5 == 0 ? "Buzz" : i));
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