Let us consider a real-world example. Humans are a form of inheritance from one standpoint, whereas cars are more like programs we write. All drivers rely on inheritance to drive different types of vehicles. People interface with the features of cars of all types as we have many different t...
Association is the OOPS concept to define the relationship between objects. The association defines the multiplicity between objects. For example Teacher and Student objects. There is a one-to-many relationship between a teacher and students. Similarly, a student can have a one-to-many relationship...
Let’s see an example. Assume we have four students and we asked them to draw a shape. All the four may draw different shapes like Circle, Triangle, and Rectangle, . We will see detailed explanation with some example programs about Polymorphism in the post related toPolymorphism. Abstraction:...
It is also known as compile-time polymorphism. For example, in the following code snippet, the method add() is an overloaded method.public class Sum { int a, b, c; public int add(); { c=a+b; return c; } add(int a, int b); { //logic } add(int a, int b, int c); {...
Example: Wrong way: int my Age; Correct way: int myAge; Types of Variables in Java: There are three types of variables in Java. 1. Local variable 2. Instance variable 3. Class/Static variable Read more on Variables in Java with Sample programs ...
For example, if we are working on an HR application then it consists of entities/actors e.g. employee, manager, department, payslips, vacation, goals, time tracking, etc. To model these entities in computer programs, we can create classes with similar data attributes and behavior as in real...
For more information about the biased locking technique, see the example in Java Tuning White Paper at http://www.oracle.com/technetwork/java/tuning-139912.html#section4.2.5 By default, this option is enabled. -XX:-UseCompressedOops Disables the use of compressed pointers. By default, this ...
3. Java Program Example 4. Core Java tutorial Chapter 1: Java Basics Chapter 9: Java Exception Handling Chapter 10: Java 8 Chapter 11: String Handling 11.1: String Methods 11.2: String Programs Chapter 12: Java IO Chapter 13: Memory
One of the most fundamental concept of OOPs isAbstraction. Abstraction is a process where you show only “relevant” data and “hide” unnecessary details of an object from the user. For example, when you login to your Amazon account online, you enter your user_id and password and press lo...
Explain Encapsulation in Java with an example Also, take a look at some most importantOOPs Interview Questionshere. Objects and Classes OOPs Interview Questions Here’s a list of the most frequently asked Objects and Classes interview questions on Java OOPs concepts. These are basic and advanced ...