Core java

In this post, we will see simple java program to find average and percentage marks. We have taken average and percentage of five subject marks below. [crayon-6a2c84d1797ef262125648/] Output: Enter marks for 5 Subjects : 91 57 83 69 74 Average Marks = 74.8 Percentage = 74.8% That’s all about Java program to calculate average and […]

In this post, we will see how to create a simple calculator in java. This calculator program performs 4 basic operatios – Addition, Substraction, Multiplication and division.It uses Switch case to choose operation you want to perform. [crayon-6a2c84d179ed5324006413/] Output: 1. Addition 2. Subtraction 3. Multiplication 4. Division 5. ExitEnter your operation : 3 Enter Two […]

This tutorial provides Java Program to Check Whether a Character is Alphabet or Not. [crayon-6a2c84d179faf733323964/] Output: Enter a Character : d d is an alphabet. The ASCII value of lowercase alphabets range from 97 to 122. And, the ASCII value of uppercase alphabets range from 65 to 90. That’s why, we compared variable character between […]

In this post, we will see how to check leap year. [crayon-6a2c84d17a043349161709/] Output: Enter Year : 2018 2018 is not a Leap Year That’s all about Java program to check leap year.

In this post, we will see how to check a Character is Vowel or Consonant. You just need to check if character is part of set {a,A,e,E,i,I,o,O,u,U}.If it is part of set then it is Vowel else Consonant. [crayon-6a2c84d17a227479548581/] Output: Enter an Alphabet : g g is a Consonant That’s all about Java Program to […]

In this post,we will see how to check if number is even odd. It is one of the basic programs of Java programming language. [crayon-6a2c84d17a2ee985945869/] Output: Enter a Number : 22 22 is an Even Number That’s all about Even odd program in java.

In this post, we will see how to add two numbers in java. This is the most basic program of java programming language. [crayon-6a2c84d17a390067158886/] Output: Enter two numbers : 5 7 Sum of two numbers is 12 If you notice, we have use Scanner to take input from user.

In this tutorial, we will learn about Interface Segregation Principle.It is one of the SOLID principles. In simple term, Interface Segregation Principle dictates that client should not be forced to implement the methods which it won’t be able to use.You can always throw UnsupportedOperationException from the method which you don’t want to use but it […]

In this tutorial, we will learn about Open Closed Design Principle in Java.Open closed principle is one of the SOLID principles. Open Closed Design Principle dictates that “software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification”. This definition was provided by Bertrand Meyer. Once we have written the class and […]