Java Archives | Codesnipeet

Understanding the Difference Between HashSet and TreeSet in Java

When working with Java collections, two commonly used implementations of the Set interface are HashSet and TreeSet. Both are used to store unique elements, but they have significant differences in terms of internal implementation, performance,…

Jewel Chowdhury March 2, 2025

Java Advanced

Java Collections Framework: A Complete Guide

The Java Collections Framework (JCF) is one of the most powerful and widely used features of Java, providing a unified architecture for storing, manipulating, and processing groups of objects. It is one of…

Jewel Chowdhury March 2, 2025

INTERVIEW Interview Questions Java Advanced

Understanding the Difference Between Heap and Stack Memory in Java

When it comes to memory management in Java, two key concepts often come up: Heap Memory and Stack Memory. Both are essential for the execution of Java programs, but they serve different purposes…

Jewel Chowdhury March 1, 2025

INTERVIEW Interview Questions Java

HashMap vs. TreeMap in Java: A Comprehensive Comparison

In Java, HashMap and TreeMap are two commonly used implementations of the Map interface, each serving distinct purposes and use cases. Understanding their differences is crucial for making the right…

Jewel Chowdhury September 1, 2024

Interview Questions INTERVIEW Java

Java Serialization: Can Static Values Be Serialized?

In Java, static values cannot be serialized directly. Serialization is the process of converting an object into a byte stream to store it in a file or send it over…

Jewel Chowdhury June 7, 2023

Java

Understanding JPA: The Java Persistence API Explained

JPA stands for Java Persistence API. It is a specification for accessing, managing, and persisting data between Java objects and relational databases. JPA provides a set of interfaces and annotations…

Jewel Chowdhury May 17, 2023

Java

Why I/O Operations Are Expensive: Understanding the Factors and Solutions

I/O operations are often considered expensive in computer systems due to several factors: Hardware limitations: I/O operations involve interacting with external devices such as hard drives, network interfaces, and other…

Jewel Chowdhury May 17, 2023

Java

10 Effective Strategies to Enhance I/O Operations for Improved Performance

To improve I/O operations in your Java programs, you can consider the following strategies: Use buffering: Utilize buffering mechanisms such as BufferedReader and BufferedWriter to reduce the number of actual…

Jewel Chowdhury May 17, 2023

Java

Java I/O Operations: A Comprehensive Guide for Efficient Data Handling

In Java, input/output (I/O) operations are used to interact with external resources such as files, network sockets, and user input/output. Java provides several classes and APIs to handle I/O operations…

Jewel Chowdhury May 17, 2023

jsp Java Java Advanced

[solved] hibernate.cfg.xml location in maven project

Hello guys, In this article, I will describe where you will keep the hibernate.cfg.xml file in your project directory. It’s a common error while working on maven based hibernate project.…

Jewel Chowdhury May 29, 2022

Java Java Advanced

How can I solve “java.lang.NoClassDefFoundError”

Hello guys, today we will show a common error while working on java based projects. This error is “java.lang.NoClassDefFoundError“. We will see how to solve this. Exception in thread "main"…

Jewel Chowdhury May 29, 2022

Java Java Advanced jsp

web.xml File Location in Dynamic WebApp in Eclipse IDE

Hello friends, Sometimes when we are working with webapp in Eclipse, may not create the web.xml file by default. As a result, we have to create the web.xml file manually.…

Jewel Chowdhury May 26, 2022

Java Java Advanced jsp

How to Handle Error in Web.xml for Java Web Applications

Hello friends, Today I will show you how to handle the error or display customized error messages in JSP and servlet. This example will display the personalized error messages on…

Jewel Chowdhury May 26, 2022

Java Java Advanced jsp

How to send redirect from Java Servlet

Hello friends, Today I am going to show you how to send redirect from Java Servlet. In this example, we will use how to send redirects from Java Servlet. At…

Jewel Chowdhury May 24, 2022

Java jsp

How to Apply CSS in out.println() method in JSP and Servlet

Hello friends, Today I am going to show you how to apply CSS in the out.println() method using JSP and servlet. In this example, we will apply CSS within the…

Jewel Chowdhury May 24, 2022

Java Java Advanced jsp

How to display a list of objects in JSP through Servlet

Hello friends, Today I am going to show you how to display a list of objects using JSP and servlet. In this example, we will display a list of object…

Jewel Chowdhury May 22, 2022

Java Java Advanced jsp

How to show data from MySQL database using JSP and Servlet

Hello friends, Today I am going to show you how to display data from the MySQL database using JSP and servlet. In this example, we will display data from the…

Jewel Chowdhury May 22, 2022

jsp Java Java Advanced

How to insert data in MySQL database using JSP and Servlet

Hello friends, Today I am going to show you how to insert data in the MySQL database using JSP and servlet. In this example, we will insert data in the…

Jewel Chowdhury May 22, 2022

Spring Boot Java

How to configure h2 database in spring boot

Hello, Today we will discuss how to configure the h2 database in the spring boot application properly. Follow the below configuration of the H2 Database: add the properties in your…

Jewel Chowdhury March 21, 2022

Java Java Advanced

How to Build a Web Scraper in Java

Hello, Today we are going to build a web scraper. Although All of you know the term, I just want to tell you shortly what exactly web scraper is? Web…

Jewel Chowdhury February 24, 2022