Write a program to check or find the armstrong number using Java
To check whether the number is armstrong number or not, Before writing the java program let's discuss about what is the armstrong number ?
If the number is equal to the sum of cube of it’s own digit then it is called Armstrong Number.For example : Let’s take a number n=407.
x = 4*4*4 ( cube of it’s own place digit )
y = 0*0*0 ( cube of it’s own place digit )
z = 7*7*7 ( cube of it’s own place digit )
so, sum = x+y+z
sum = 64 + 0 + 343
sum = 407
The number n=407 is an Armstrong Number.
Table of Contents
Java Program Code
/*;==========================================
; Title: Java Program to check or find the armstrong-number.
; Author: codenaive [email protected]
; Date: 13 Dec 2021
;==========================================*/
import java.util.Scanner;
public class Armstrong
{
public static void main(String[] arg)
{
Scanner obj =new Scanner(System.in);
int a,b,c,d,sum,input;
for(int i=1;i< =5;i++)
{
System.out.println("Enter the number");
input=obj.nextInt();
a=input/100;
b=input%100;
c=b/10;
d=b%10;
sum=d*d*d+c*c*c+a*a*a;
if(sum ==input)
{
System.out.println(input+" is a Armstrong Number ");
}
else
System.out.println(input+" is not a Armstrong Number");
}
}
}
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