Let’s imagine you have designed an application that processes thousands of JSON requests per second. While doing a simple heap analysis, you discover that memory usage is much higher than expected, not caused by large caches or complex objects, but…
Arrays are one of the most popular data structures in Java, and they are designed to be fast. Even though arrays are objects in Java, they are still laid out in memory in a way that makes access very efficient.…
BigDecimal is a life saver when it comes to financial applications. If you are doing lots of decimal math where correctness is non negotiable, things like taxes, interest, and FX conversions, BigDecimal gives you clear guarantees around decimal behavior, correctness,…
