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  • JDK 11 features | code2java
    Java

    JDK 11 features

    ByNikhil Naoghare March 22, 2026April 2, 2026

    JDK 11 is a game-changing Long-Term Support release that brings modern APIs, performance improvements, and cleaner coding practices to Java developers. In this guide, we’ll break down the most important features with real-world examples and explain how they work internally so you can confidently use them in production. 🚀

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  • Concurrency in Java | code2java
    Java | Java Examples

    Concurrency in Java – Developer’s Perspective

    ByNikhil Naoghare March 22, 2026April 2, 2026

    Why Concurrency Even Matters If you’ve been writing Java for a while, you’ve already been using threads — even if you didn’t realize it. That main() method? It runs on a thread. But things get interesting when your application needs to do more than one thing at a time. Think about: If everything runs in…

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  • flutter

    CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate

    ByNikhil Naoghare August 27, 2021April 2, 2026

    If you are using flutter with REST APIs, you may come across “CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate” issue.

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  • Maven Project Code2java
    Apache | Eclipse | Java | Java Examples | Maven | Uncategorized

    Maven project in Eclipse

    ByNikhil Naoghare August 13, 2021April 2, 2026

    In this blog we would be discussing about one of the ways of creating a Maven project in Eclipse.

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  • Java | RCP | SWT

    RCP SWT export grid data

    ByNikhil Naoghare December 13, 2017October 3, 2019

    Hello Friends, This is one of my tutorials for people working with RCP, SWT, JFace to export grid data. It is very obvious to display data in a grid/tabular form. Most of the times, user wants to export the data which is being displayed so how to export grid data from the grid to an…

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  • HashMap Internals | Code2java
    Java | Java Examples | JDK 8

    HashMap in Java Explained – Internal Working, Evolution & Real Insights

    ByNikhil Naoghare March 13, 2016April 2, 2026

    Java HashMap uses
    🔑 Key → Hash → Bucket flow (core hashing concept)
    đź§± Bucket array structure (internal storage)
    đź”— Collision handling (linked list)
    🌳 Java 8 enhancement (tree structure after threshold)
    ⚡ Performance hint (O(1))

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  • Eclipse | Java

    Jadclipse decompiler plugin

    ByNikhil Naoghare March 12, 2016March 12, 2016

    This is one of the tutorials regarding eclipse to integrate – java jadclipse decompiler plugin. Jadclipse provides a plugin for eclipse to decompile the class file on fly and show the content. There are many other ways to de compile the class file and to integrate this plugin with your IDE. You can also refer – https://marketplace.eclipse.org/content/eclipse-class-decompiler….

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  • Hibernate | Java | Java Examples | JDBC | JSP | Spring | XML

    Spring Hibernate Integration

    ByNikhil Naoghare March 6, 2016October 2, 2019

    In this post we will be discussing on Spring Hibernate integration. As we all know Spring provides an ORM support and one of the best available ORM tool to be integrated with Spring is Hibernate. The integration is very much simple and comes with lot of flexibility which is the biggest advantage Spring comes with. Lest…

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  • Java | Java Examples | JDBC | Spring | XML

    Spring JDBC configuration

    ByNikhil Naoghare February 7, 2016October 2, 2019

    This post explains the Spring JDBC configuration for accessing database in any Spring application. One or the most commonly used framework in java Spring gives support for ORM and JDBC, in this part we will look into configuration of JDBC with Spring.

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  • Datatable | HTML | Java | Java Examples | JSP | Spring

    Datatables server side processing in Java

    ByNikhil Naoghare February 7, 2016August 13, 2021

    This post explains implementing datatables server side processing in java. Check out Datatables with Spring MVC example from my previous blogs to understand in details. In this post I will be explaining server side processing on datatables, that is loading data on demand in datatable using AJAX.

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  • Java | Java Examples | JSP | Spring

    Spring MVC login example

    ByNikhil Naoghare December 6, 2015October 2, 2019

    SPRING MVC is commonly used framework for creating web applications in JAVA. Here we will see the common implementation of SPRING with MVC pattern. At the end of this tutorial we will have a spring mvc login example, which will help all the newbies to get started with Spring.

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  • Datatable | Java | Java Examples | JSP | Spring

    Datatables with Spring MVC

    ByNikhil Naoghare December 5, 2015October 2, 2019

    This tutorial explains the implementation of Datatables with Spring MVC. Most of you all will be aware of usage of data tables in a web application, here we will see how to integrate it with Spring MVC application. This is like any other web page that we create in our MVC application, the only different…

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