Java diamond problem

The reason behind this is to prevent ambiguity . Consider a case where class B extends class A and Class C and both class A and C have the same method display(). Now java compiler cannot decide, which display method it should inherit. To prevent such situation, multiple inheritances is not allowed in java.

Multilevel Inheritance occurs when a class extends a class that extends another class . For example, class C extends class B, and class B extends class A. This is referred to as multilevel Inheritance. How is multilevel Inheritance implemented in Java? Multilevel Inheritance in Java is implemented using extends keyword.

The Java programming language supports multiple inheritance of type , which is the ability of a class to implement more than one interface. An object can have multiple types: the type of its own class and the types of all the interfaces that the class implements.

When one class extends more than one classes then this is called multiple inheritance. For example: Class C extends class A and B then this type of inheritance is known as multiple inheritance. Java doesn’t allow multiple inheritance.