﻿ Java - Check whether a number is an Automorphic number or not

# Java: Check whether a number is an Automorphic number or not

## Java Numbers: Exercise-14 with Solution

Write a Java program to check whether a number is an automorphic number or not.

In mathematics, an automorphic number is a number whose square "ends" in the same digits as the number itself. For example, 52 = 25, 62 = 36, 762 = 5776, and 8906252 = 793212890625, so 5, 6, 76 and 890625 are all automorphic numbers.

Test Data
Input a number : 76

Pictorial Presentation:

Sample Solution:

Java Code:

``````import java.util.Scanner;
public class Example14 {

public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Input a number : ");
int num = sc.nextInt();
int sq_num = num*num;

String str_num = Integer.toString(num);
String square = Integer.toString(sq_num);

if(square.endsWith(str_num))
System.out.println("Automorphic Number.");
else
System.out.println("Not an Automorphic Number.");
}
}
```
```

Sample Output:

```Input a number : 76
Automorphic Number.
```

Flowchart:

Java Code Editor:

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