• Parameter Constructor and overloading

    What is parameter constructor? – In java program, when we set same class name and method name that is called constructor structure in java program and when we set parameter as constructor method it’s called parameter constructor. – Constructor method does not have return type. – 3 types of constructor available in java program. – […]

  • Default Constructor in java program

    What is default constructor? – In java program, when we set same class name and method name that is called constructor structure in java program. And when we set null argument as method it’s call default constructor. – Constructor method does not have return type. – 3 types of constructor available in java program. – […]

  • Getter – Setter Methods in Java Program

    What is Getter Setter Methods? – Getter Setter Methods are working to get data from class and to set data in class. This is one easy process for all programmers. We can also use constructor. But getter – setter is very easy and flexible for all java developer.   Let’s see example on Getter Setter […]

  • Instance Variable Hiding in java program – “this keyword”

    What is Instance variable Hiding in Java Program? – When our instance variables (class variables) are same with parameter variables that time have to specified our class variables so that time we use “this keyword” in our program. – At that time we hide instance variable in “this keyword”. So we can call instance variable […]

  • Object VS Reference in java program

    Object VS reference in java class programming? This is basic different between them. Object can access class data members. (data members -> methods and variables) Reference can’t access directly class data members.   Let’s see example on Object VS Reference. class A { void method1() { System.out.println(“Welcome in Invision Software Solution”); } } class clEx1 […]

  • Instance variable in java program

    In this blog, we will discuss on instance variable. Variable has many types like final, static, const and instance. This all are declare in class body. So we can say properties of class. Here we will see how to access instance variable from main class.   Let’s see example on instance variable. import java.util.*; class […]

  • Introduction About Class Object Methods

    Java language is object oriented programming language. We can also call OOP. Class Object Methods will help to give MVC structure to our programs. Let’s understand basic concepts of class. class is keyword in java language class is collection of methods and variable one class can share its properties with other class using relation We […]