Program documentation is very important in program for easy comprehension of your program by the reader. This also helps in proper maintainance of a program so that it will be easy to trace the error and for future upgrade of the program. Program documentation is achieved by using comment. Comment is usually of 2 types. […]
Method in java always follows constructors in object oriented programming. And its helps implement certain behavior or action that an object needs to perform. For example, if an instance of object class or bike is created by a constructor, method will help all necessary behavior like ( move forward or back, turn) to be performed. […]
Constructor in java program are used in creating new instance of object of a class in object oriented programming. Constructors always uses the same name with the class as seen in the code below //the name of the constructor will also be Bike which is exactly name of the class public class Bike{ private int […]
– To build a program to solve a mathematical equation, the first thing is to write out the mathematical equation on a paper and note all the parameters. For example lets work on building a program that will solve the square root of the square of two variable (x and y) SquareRoot of x2 + […]
OOP means Object Oriented Programming. It helps to write program for our devices like car, mobile phone and other devices that we use. And this is done by creating instances of object from each of this device (like starting & offing the car, accelerating & reversing the car etc.) by creating different methods to achieve […]
This article will help thousands of java programmer to know how to get input from user in Java So far we can easily display text to the user using System.out.println( ); We must find a way of getting input from user using Scanner. There are lots of different ways to get input from users e.g […]
For a program to effectively interact with user, we have to understand the usage of simple input and output method. Basic Output Syntax to display information to the user IO.output (“Enter the radius of circle”); Enter the radius of circle will be displayed to the user and the cursor will be on the same line. […]
This the opposite of parameter. Return is a way to pass information out of a method. It helps the parameter to be passed out of the method. As you ealier know that a parameter exist within a method but with the help of return, the work of parameter is been passed outside the method e.g […]
This article will help reader to know how to use Parameter in Java A parameter is just a variable that is declared in your method but it value is set at the call of that method. Parameter are usually declared within the parenthesis of a method and it is usually used in the entrance of […]
Variable is one of the identifiers that is used frequently in a program. A variable represent computer memory unit for storing value. In any program, variable are declared and initiated at the beginning of program. For example, if I want to write a simple program that will calculate the square root of the summation of […]
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