Problem Description

Write a Java program to check if a number is an Automorphic number (a number whose square ends in the same digits as the number itself).

Code

AutomorphicNumber.java

public class AutomorphicNumber {
    public static void main(String[] args) {
        int num = 76;
        int square = num * num;

        String sNum = String.valueOf(num);
        String sSquare = String.valueOf(square);

        if (sSquare.endsWith(sNum))
            System.out.println(num + " is an Automorphic Number.");
        else
            System.out.println(num + " is not an Automorphic Number.");
    }
}

Output

76 is an Automorphic Number.

Explanation

Square: Calculate the square of the number.
Comparison: Check if the string representation of the square ends with the string representation of the number.

Java Program to Check Automorphic Number

Problem Description

Code

Output

Explanation

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