Write a java Program to accept ‘n’ no’s through
command line and store only Armstrong no’s into the array and display that
array.
import java.util.ArrayList;
import java.io.*;
public class ArmstrongNumbers {
public
static void main(String[] args) {
if
(args.length == 0) {
System.out.println("Please provide some numbers as command-line
arguments.");
return;
}
int n = args.length;
int[] numbers = new int[n];
for (int i = 0; i < n; i++) {
try {
numbers[i] = Integer.parseInt(args[i]);
} catch (NumberFormatException e) {
System.out.println("Invalid input: " + args[i] + " is not
a valid number.");
return;
}
}
ArrayList<Integer> armstrongNumbers = new ArrayList<>();
for (int number : numbers) {
if (isArmstrongNumber(number)) {
armstrongNumbers.add(number);
}
}
if
(armstrongNumbers.isEmpty()) {
System.out.println("No Armstrong numbers found in the provided
input.");
}
else {
System.out.println("Armstrong numbers in the input:");
for (int armstrongNumber : armstrongNumbers) {
System.out.println(armstrongNumber);
}
}
}
public
static boolean isArmstrongNumber(int number) {
int originalNumber, remainder, result = 0;
originalNumber = number;
while (originalNumber != 0) {
remainder = originalNumber % 10;
result += Math.pow(remainder, 3);
originalNumber /= 10;
}
return result == number;
}
}
