Add Armstrong_Number.java

Author: kiran621

Diff for: Armstrong_Number.java

@@ -0,0 +1,26 @@
+public class Armstrong_Number {
+
+    // Optimal Approach
+    static boolean armstrong (int n) {
+        int sum = 0;
+        int dup = n;
+        while (n > 0) {
+            int lastDigit = n % 10;
+            sum = sum + (lastDigit * lastDigit * lastDigit);
+            n = n / 10;
+        }
+        if (dup == sum) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    // Main Function
+    public static void main(String[] args) {
+        boolean result = armstrong(170);
+        System.out.println(result);
+    }
+}
+