Automorphic Number in Java

June 29, 2023

Check Whether Or Not the Number is an Automorphic Number in Java

Given an integer input, the Objective is to check whether the square of the number ends with the same number or not. Therefore, we’ll write a code to Check Whether or Not the Number is an Automorphic Number in Java Language.

Example
Input : 5
Output : Yes, it's an Automorphic Number
java program to find automorphic number or not

Check Whether or Not the Number is an Automorphic Number in Java

Given an integer input, the objective is to check whether or not the Number is an automorphic number or not. To do so we’ll check whether the square if the number ends with the number itself of not. For a number to be Automorphic, it’s square has to end with the number itself. Let’s implement the above mentioned logic in Java Language.

Automorphic Number in C Programming

Example:

5 =(5)2 = 25

6 = (6)2 = 36

25 = (25)2 = 625

76=(76)2 = 5776

376 = (376)2 = 141376

890625 = (890625)2 = 793212890625

These numbers are the automorphic numbers.

Automorphic Number in C

Java Code

Run 
public class Main
{
	public static void main(String[] args) {
	   
	int n = 376, sq = n * n ;
    if(isAutomorphic(n) == 1)
        System.out.println("Num: "+ n + ", Square: " + sq + " - is Automorphic");
    else
        System.out.println("Num: "+ n + ", Square: " + sq + " - is not Automorphic");
	   
		
	}
	
	static int isAutomorphic(int n){
    int square = n * n;
    while(n != 0)
    {
        // means not automorphic number
        if(n % 10 != square % 10){
            return 0;
        }
        // reduce down numbers
        n /= 10;
        square /= 10;
    }
    // if reaches here means automorphic number
    return 1;
}
}

Output

Num: 376, Square: 141376 - is Automorphic
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Strong number

Perfect number

Harshad number

Abundant number

Friendly Pair

Some other methods to solve the problem :

Method 1 :

Run 
public class Main {
public static void main(String[] args) {
    int x=5;
    int y=x*x;
    if(y%10==x%10)
        System.out.println("automorphic");
    else
        System.out.println("not");
}
}

Output :

automorphic

Method 2 :

Run 
class HelloWorld {
public static void main(String[] args) {
    int num=10;
    int sqt=num*num;
    int count=0;
    int temp=num;
    while(temp!=0)
    {
        temp=temp/10;
        count++;
    }
    temp=sqt;
    int rem=0,rev=0;
    for(int i=0;i< count;i++)
    {
        rem=temp%10;
        rev=rev*10+rem;
        temp=temp/10;
    }
    if(rev==num)
        System.out.println("Automorphic Number");
    else
        System.out.println("No Automorphic Number");
}
}

Output :

No Automorphic Number

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26 comments on “Automorphic Number in Java”


  • Chetan Mundle

    package prep1;

    import java.util.Scanner;

    public class autoMorphicNumber {
    public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println(“Enter number : “);
    int num = sc.nextInt();

    int flag = num, rem, howManuNum = 0;
    int sqrRoot = num * num;
    while (flag != 0) {
    rem = flag % 10;
    howManuNum++;
    flag /= 10;
    }

    int i = 1;
    int flag1 = num;
    String temp = “”;
    while (i <= howManuNum) {
    rem = flag1 % 10;
    temp = String.valueOf(rem) + temp;
    flag1 /= 10;
    i++;
    }

    int temp2 = Integer.parseInt(temp);

    if (temp2 == num) {
    System.out.println("Yes, The above number is Automarphic");
    }else {
    System.out.println("No, The above number is Automarphic");
    }

    }
    }

    0

  • Vamsi

    public class Main {
    public static void main(String[] args) {
    int x=5;
    int y=x*x;
    if(y%10==x%10)
    System.out.println(“automorphic”);
    else
    System.out.println(“not”);
    }
    }

    1

  • Vamsi

    public class Main {
    public static void main(String[] args) {
    int x=5;
    int y=x*x;
    System.out.println(y%10);
    System.out.println(x/10);

    if(y%10==x%10)
    System.out.println(“automphric”);
    else
    System.out.println(“not”);
    }
    }

    1

  • SRINJAY

    System.out.println((((n*n)%10)==n) ? “Automorphic number” : “Not an automorphic number”);

    1

    • SRINJAY

      System.out.println((((n*n)%10)==(n%10)) ? “Automorphic number” : “Not an automorphic number”);
      Updated for any number!

      0

  • sunaynabhattacharjee00

    class HelloWorld {
    public static void main(String[] args) {
    int num=10;
    int sqt=num*num;
    int count=0;
    int temp=num;
    while(temp!=0)
    {
    temp=temp/10;
    count++;
    }
    temp=sqt;
    int rem=0,rev=0;
    for(int i=0;i<count;i++)
    {
    rem=temp%10;
    rev=rev*10+rem;
    temp=temp/10;
    }
    if(rev==num)
    System.out.println("A");
    else
    System.out.println("No");
    }
    }

    0
1 2