We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...

Java allows classes to implement multiple interfaces — a capability known as multiple interface inheritance. Suppose you want to write a program that counts the number of times you have failed ...

The SOLID open-closed principle in Java asserts that a well-designed software component ... To fix this example, we first create an interface that both the circle and the square implement: With this ...