SOLID design principles in Java are a set of guidelines that promote robust, scalable, and maintainable software development. By adhering to these principles, developers can create codebases that are flexible and adaptable as they evolve. The SOLID principles include Single Responsibility Principle (SRP), Open-Closed Principle (OCP), Liskov Substitution Principle (LSP), Interface Segregation Principle (ISP), and Dependency Inversion Principle (DIP). These principles help ensure that software is not only functional but also easy to maintain in the long run.

Source: https://dev.to/rajesh1761/what-is-solid-design-principle-in-java-134j