In this tutorial you will learn about the Program to check Automorphic Number in Java and its application with practical example.
In this tutorial, we will learn to create a Java Program to check Automorphic Numbers in Java using Java programming.
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following Java programming topics:
- Java Operators.
- Basic Input and Output function in Java.
- Class and Object in Java.
- Basic Java programming.
- If-else statements in Java.
- For loop in Java.
What is an automorphic number?
A number is called an automorphic number if square of the number ends with the same number itself as shown in example below.
Example. 5,6, 25, 76 etc are automorphic numbers.
Program to check Automorphic Number in Java
In this our program we will find given number is a automorphic number or not in using java. We would first declared and initialized the required variables. Next, we would prompt user to input the a number.Later we find number is automorphic number or not let’s have a look at the code.
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// Java program to find Automorphic number import java.util.Scanner; public class Automorphic_number { public static void main(String args[]){ // Decalring avriables taking values form user.. Scanner in = new Scanner(System.in); System.out.println("Enter any number"); int number = in.nextInt(); int c=0, square = number*number;// squaring values int temp =number; // making copy of number //calucalting values while(temp>0) { c++; temp=temp/10; } // finding last digit or value int lastDigits = (int)(square%(Math.pow(10,c))); // comparing last digit to roginal number if(number == lastDigits) System.out.println(number+" is a Automorphic number"); else System.out.println(number +" is Not an Automorphic number"); } } |
Output
Automorphic number
Not a Automorphic Number.
In the above program, we have first declared and initialized a set variables required in the program.
- number= it will hold entered number.
- temp= ti will actual copy of a number.
- lastDigits=it will hold last digit of square of given number.
- square=it will hols square of given number.
After declaring variables in the next statement user will be prompted to enter a value and which will be assigned to variable ‘number’.
And after that we will find square of that value and after that we will find last two digits of given number and making the copy of original number as shown in picture below.
After that we will find last two digits of a number.
then check condition for Automorphic number if condition get satisfied it means the given number is Automorphic number if not then it is not Automorphic number.
And finally we print the given number is Automorphic Number or not.
