JAVA - Step by Step JAVA

Write a program to create table of any number.

On March 4, 2019 By admin

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println(“Please enter a number, for which you want to write a table:”); int number = scan.nextInt(); for(int count=1; […]

Write a program to find length and sum of digits in a number.

On December 22, 2018 By admin

Lets first figure out the logic of getting digits of a number, once we get the digit we can count them and also find addition. suppose we have a digit= 543374. lets figure out it as; Step 1: reminder = 543374%10 = 4 digit =543374/10 =54337 (1 digit) Step […]

Write a program to find digits in a number.

On November 8, 2018December 16, 2018 By admin

Hey guys, writing a code is not a tough if you know the logic and you can write it at your own in any computer language that you know. so first we figure out the logic of getting digits of a number. suppose we have a digit= 234. lets figure […]

What is and how to use the Constructors in JAVA?

On September 24, 2017August 28, 2022 By admin

Why constructor is needed? It can be a slow process to initialize all variables of a class, each time when an object is created. Because the requirement of initialization is very common, JAVA allows objects to initialize themselves when they are created. This automatic initialization is performed through the use […]

What is and how to use classes in JAVA?

On August 9, 2017August 28, 2022 By admin

Classes are blueprint of any real entity in Java. A class contains of two types of members; a data or variable and another is method or function. Variable defined within a class are called as instance variables because each instance of the class (object of class) contains its own copy […]

Arrays

On June 16, 2017February 14, 2018 By admin

An array is a group of similar-typed variable that are referred by a common name. A specific element in an array is accessed by its index. An array may have one or more dimensions. One Dimensional Arrays: The general form of a one dimensional array declaration is as: type variable-name[]; […]

Type Conversion and Casting

On June 3, 2017February 14, 2018 By admin

There are two types of conversion in Java as: Implicit conversion Explicit conversion Implicit Conversion: Implicit conversion is also known as automatic conversion. When one type of data is assigned to different type of variable then automatic type conversion will take place if the following conditions are met. both type […]

Data Types and Variables

On May 21, 2017February 14, 2018 By admin

The Primitive Type: There are eight primitive types of data : byte, short, int, long, char, float, double and boolean. These can be put in four categories as: Integers : This group includes bytes, short, int and long , all of these are used for whole valued signed integer. Floating […]

How to use control statements in Java and their example

On May 13, 2017December 16, 2021 By admin

There are mainly three categories of control statement in Java as: Selection Statement Iteration Statement Jump statement § Selection Statement: There are two selection statements as: if statement: It is conditional branch statement. It can be used to route program execution through two different paths. Syntax: if(condition) { statement; […]

Simple Example of Java Program

On April 25, 2017December 16, 2021 By admin

class Example { //program begins here. public static void main(String args[]){ System.out.println(“Hi, This is my first Java program.”); } } This is a simple program to print a line “Hi, This is my first Java program.” There are some key points that should be known to you: Here ‘class’ is […]