Core Java
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Exporting JDBC ResultSet Data to Excel with Apache POI
Apache POI is a powerful library for reading and writing Microsoft Office files, including Excel. Writing JDBC ResultSet data to…
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How to Convert JDBC ResultSet Data to CSV in Java
When working with JDBC (Java Database Connectivity) to retrieve data from a database, you may sometimes need to export the…
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Load Testing Java Applications: An In-Depth Guide to Apache JMeter
In today’s fast-paced digital environment, ensuring that your Java applications can handle a variety of load conditions is critical. Load…
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Java Input Handling: Read Multiple Integers from One Line
Using the Scanner class is a common way to read user input in Java. However, if you are trying to…
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Enhancing Java Testing with PIT: A Guide to Mutation Testing
In software development, ensuring code quality is a critical component of creating robust, maintainable applications. Traditional testing approaches like unit…
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Insert a Number Into a Sorted Array Example
1. Introduction Manipulating sorted arrays is a common requirement in Java applications that maintain ordered collections either for efficient retrieval…
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java.lang.classnotfoundexception: com.mysql.cj.jdbc.driver Resolved
The error java.lang.classnotfoundexception: com.mysql.cj.jdbc.driver occurs when your Java application cannot locate the MySQL JDBC driver class at runtime. This issue…
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Fuzz Testing in Java: A Beginner’s Guide to Security
In today’s digital landscape, software security is not just a priority—it’s a necessity. Applications face threats from every angle, and…
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Java float to int Conversion
In Java, converting a float to an int is a common operation that is often required when dealing with numeric…
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