Java Abstract classes and Interfaces
What is casting? Assigning one data type to another or one object to another is known as casting. Java supports two types of casting – data type casting and object casting. Conditions of assigning objects of different classes one to another Same class objects can be assigned one to another and it is what we …
Java Abstract Class Tutorial Example Summary: By the end of this tutorial "Java Abstract Class Tutorial Example", you will be comfortable to practice abstract methods and abstract classes. abstract Modifier You have seen earlier two access modifiers – static and final. Now let us go for another modifier "abstract". "abstract" modifier (and also keyword) can …
Difference Abstract class Interface Summary: By the end of this tutorial" Difference Abstract class Interface", you will be comfortable to their differences. Introduction A novice feels why both abstract class and interface are required in Java as an abstract class can contain all abstract methods also. The main difference just on the face is Interface …
Java Made Clear: Difference between Abstract class Interface Read More »
We know earlier, Java does not support multiple inheritance, basically. But to support multiple inheritance, partially, Java introduced "interfaces". An interface is not altogether a new one for us; just it is a special flavor of abstract class where all methods are abstract. That is, an interface contains only abstract methods. Syntax of multiple inheritance …
Java interface realtime examples Summary: By the end of this tutorial "Java interface realtime examples", you know what is interface with realtime examples. Java interface realtime examples Interface differs from abstract class in that interface contains only abstract methods. All methods should be public and abstract; if just omitted by the Programmer by style, Java …
What is interface in Java with realtime Example? Read More »
Extend Multiple Classes Java Summary: At the end of this tutorial you will understand the usage of Extend Multiple Classes Java in the code. We know earlier that Java does not support multiple inheritance but supports partially through interfaces. After extends there must be only one class of either concrete (non-abstract) or abstract. After implements …
Summary: At the end of this tutorial, you will be comfortable with Multiple Interfaces Implements usage. Looks difficult at the beginning, but put some patience and start reading. Do some small programs to understand still better. This is required for a Developer. Any doubts may be forwarded to me. As Java does not support direct …
Static Polymorphism Dynamic Polymorphism Summary: By the end of this tutorial "Static Polymorphism Dynamic Polymorphism", you will understand their differences. Explained with programs in simple words. It is the continuation of previous program Difference: Static binding and Dynamic binding and knowledge of binding is very much required for better understanding this concept as binding leads …
Difference Static binding Dynamic binding Java, being an OOPs language, supports both static binding and dynamic binding. Coming to our topic, a class may have overloaded and overridden methods. When to call which method is decided (binded) sometimes by compiler and sometimes by JVM at runtime. Why this disparity? Why Java is designed like this? …
Java Made Clear: Difference Static binding Dynamic binding Read More »
Static binding and static polymorphism is achieved through method overloading. Now let us go for dynamic polymorphism. Observe the following code. Program of Java Dynamic Binding Dynamic Polymorphism class Bird { public void eat() // I { System.out.println(“All birds eat”); } } class Peacock extends Bird { public void eat() // II { System.out.println(“Peacock eats …
Java uses two keywords to inherit – extends and implements. The difference of them and their usage is trivial to understand. Introduction Java Extends vs Implements Go through the following combinations and rules one-by-one. Write small programs and practice. It is required to master them for a better Developer. 1. Inheritance between concrete (non-abstract) and …
