Twenty-three years ago, in his Design Principles and Design Patterns article, Robert "Uncle Bob" Martin boiled down the Liskov substitution principle to the idea that "derived classes should be ...

The SOLID open-closed principle in Java asserts that a well-designed software component will be open for ongoing extension, but closed to edits and modification. In other words, a Java class that ...

Java will be 30 years old in 2025. This is a good time to look back, but also forward.