Core Java
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Counting the Number of Unique Digits in an Integer in Java
Counting the number of unique digits in an integer is an interesting problem that involves analyzing the individual digits of…
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Find the Largest Prime Under a Given Number in Java
In computer science, checking whether a number is prime and finding prime numbers are fundamental tasks. This article explores two…
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The Future of Async in Java: CompletableFuture vs Virtual Threads
Asynchronous programming is a cornerstone of modern Java applications, allowing them to handle tasks without blocking the main thread. But…
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Retrieving First n Characters in a String in Java
When working with strings in Java, there are different ways to extract the first n characters efficiently. This article will…
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Remove Only Trailing Whitespace From a String in Java
In programming, handling whitespace characters within strings often requires careful manipulation, especially when dealing with leading or trailing spaces. Trailing…
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Test Repository with @DataJpaTest and JUnit
1. Introduction In today’s software development landscape, ensuring the reliability and correctness of applications is paramount. Testing plays a crucial…
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Find the Square Root of BigInteger In Java
In Java, BigInteger is a class that enables the representation of arbitrarily large integers. It offers operations for arithmetic, comparison,…
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Java Patterns, Singleton: Cons & Pros
Singleton, a creational design pattern introduced by the Gang of Four in 1994, faces criticism for its frequent misuse due…
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Memory-Friendly File Reading in Java
Java offers powerful tools for working with files. But when dealing with massive files, traditional methods can quickly run into…
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