Java programming

Introduction to Object-Oriented Programming (OOP) What Is OOP? It is a programming style in java in which we try to relate our code with real world examples by creating objects and classes this is what we called as object oriented programming we use this approach to understand the problem in terms of real world scenario so that it becomes easy for us to understand. Object oriented programming vs procedural programming Features of object oriented programming: It is based on classes and objects Data is bound within objects by private/protected keywords. It is called as bottom up approach in programming High code reusability due to inheritance, interfaces and polymorphism Better to relate with real world examples Maintenance is easy as everything is based on objects changes in one object does not alter in another object. Example language: java, C++, python. Features of procedural programming: It is based on functions no any concept of classes and objects Data is global and can be ac...

Access modifiers in Java Complete Beginner’s Guide | technical-arbaab

Access modifiers in Java Access modifiers in java are used to define the scope and visibility of classes, variables, methods, and constructors, they tell about which part of program can be accessed by other parts of the program according to there scope and visibility don't worry I will make you clear with the help of an example too but for now let's first see how many type of access modifiers are there in java. Types of access modifiers in Java- Public - It can be accessed from anywhere in the code (class, package subclass or world) Private - It can be accessed from within the same class only. Protected - It can be accessed from the same package and from the subclasses of other packages too. Default - It can be accessed only within the same package. Let's see each one of them with the help of an example too. Example of public access modifier - public class PublicExample { public String name = "John"; public void display() { System.out.p...

loops in java | technical-arbaab

L oops in Java loops in a programming language is a feature which gives us the functionality to repeat the set of instructions when some condition is true. there are types of loops in Java- for loop while loop do while loop for loop: It is a control flow statement which consists of three parts initialization, condition checking, increament/decreament. The syntax of for loop is given below: for(initialization;condition checking;increament/decreament) { statement; } Control flow in for loop - Working procedure of for loop- First control starts from initializing a variable then it checks the condition if the condition is true control goes inside the for loop to execute the statement written inside the for loop after executing control again goes to the condition checking part while going towards the condition checking part it passes through the increment /decrement part of for loop do accordingly whether increment or decrement ...

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