Update OOP/Java/Lab/Week3/Armstrong.java

OOP/Java/Lab/Week3/Armstrong.java

@@ -1,37 +1,26 @@
-import java.util.Scanner;
-import java.lang.Math;
-
-class Armstrong{
-    public static void main(String args[]){
-        Scanner sc = new Scanner(System.in);
-
-        int a,b,digit;
-        int digisum=0;
-        int c=0;
-
-        System.out.println("Enter the number you went to check for Armstrong-ness:");
-        a = sc.nextInt();
-    
-        b = a;
-
-        while(b!=0){
-            c++;
-            b/=10;
-        }
-
-        b = a;
-
-        while(b!=0){
-            digit = b%10;
-            digisum += Math.pow(digit, c);
-            b /= 10;
-        }
-
-        if(digisum == a){
-            System.out.println("The number is an armstrong number.");
-        }else{
-            System.out.println("The number is not an armstrong number.");
-        }
-
-    }
-}
+import java.util.Scanner;
+
+class Armstrong {
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+
+        System.out.println("Enter a number");
+
+        int n = sc.nextInt();
+        int b = String.valueOf(n).length();
+        int sum = 0;
+        int temp = n;
+        while (temp > 0) {
+            int r = temp % 10;
+            sum += Math.pow(r, b);
+            temp /= 10;
+        }
+        if (sum == n) {
+            System.out.println("The given number is an Armstrong Number.");
+        } else {
+            System.out.println("The given number is not an Armstrong Number.");
+        }
+        sc.close();
+    }
+}