Added Armstrong number algorithm.

Others/Armstrong.java

@@ -0,0 +1,40 @@
+package Others;
+
+import java.util.Scanner;
+/**
+ * To check if a given number is armstrong or not.
+ * @author mani manasa mylavarapu
+ *
+ */
+public class Armstrong {
+	public static void main(String[] args) {
+		Scanner scan = new Scanner(System.in);
+		System.out.println("please enter the number");
+		int n = scan.nextInt();
+		boolean isArmstrong = checkIfANumberIsAmstrongOrNot(n);
+		if(isArmstrong)
+		{
+			System.out.println("the number is armstrong");
+		}
+		else
+		{
+			System.out.println("the number is not armstrong");
+		}
+	}
+
+	public static boolean checkIfANumberIsAmstrongOrNot(int number) {
+		int remainder, sum = 0,temp=0;
+		temp=number;
+		while (number > 0) {
+			remainder = number % 10;
+			sum = sum + (remainder * remainder * remainder);
+			number = number / 10;
+		}
+		if (sum == temp) {
+			return true;
+		} else {
+			return false;
+		}
+
+	}
+}