Diamond problem occurs when we use multiple inheritance in programming languages like C++ or Java. Let’s understand this with one example. Diamond Problem in Inheritance Suppose there are four classes A, B, C and D. Class B and C inherit class A. Now class B and C contains one copy of all the functions and …
Abstract class and interface both are used to achieve abstraction in java. Still there are lot of differences between abstract class and interface which I am sharing in this tutorial. Difference between Abstract Class and Interface in Java Difference between Abstract Class and Interface in Java – Image Source Abstract Class Interface Abstract class can …
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Before learning interface in java, you must know about abstraction. So lets learn about what is abstraction. Abstraction in Java Abstraction is the process of hiding the complexity and showing the functionality. Showing the essential data and hiding the non essential data. We can understand this by taking a real world example. We have fan …
Before reading this tutorial I will recommend you to read about dynamic binding in java, because without knowing about dynamic binding you can’t understand the concept of abstract class in java. Abstraction in Java Abstraction is the process of hiding the complexity and showing the functionality. Showing the essential data and hiding the non …
Binding is the process of connecting the method call to the method body or determining the type of the object. In Java there are two types of binding, static binding and dynamic binding. I have explained them one by one in this tutorial. Static Binding in Java 1. When type of the object is determined …
Super refer to parent class. It holds the reference id of parent section of child class object. Observe below example. class A { int x=10; } class B extends A { int x=20; } Here you can see that in child object, two separate sections are created namely parent section and child section. …
Creating a new class from existing class is known as inheritance. Inheritance is used to achieve dynamic binding and reusability. The class which is inherited is known as super class or parent class and the class derived from the parent class is known as sub class or child class. Inheritance is implemented using extends keyword. …
Autoboxing and Unboxing in Java Before understanding autoboxing and unboxing in java we must know what is wrapper class. So lets take a look on it. Wrapper Class A wrapper class wraps around a primitive data type and gives it an object appearance. This wrapper class object can be used whenever the primitive data type is …
