Java is one of the most popular programming languages used to create reliable, scalable, and cross-platform applications. Thanks to the “write once, run anywhere” approach, Java applications run on any platform that supports the Java Virtual Machine (JVM). Java is widely used in banking systems, telecommunications, enterprise solutions, and mobile applications (Android). Thanks to its strict typing and powerful standard library, Java provides stability, security, and high performance. For businesses, Java reduces development and support costs thanks to the stability of the platform and a rich ecosystem of ready-made solutions.