Sum of Digits in an Integer

Given a non-negative int n, return the sum of its digits recursively (no loops). Note that mod (%) by 10 yields the rightmost digit (126 % 10 is 6), while divide (/) by 10 removes the rightmost digit (126 / 10 is 12).



sumDigits(126) → 9


sumDigits(49) → 13


sumDigits(12) → 3
----------------------------------------------------------
public int sumDigits(int n) {




int Count=0;

if(n/10<10){

Count=(n%10)+(n/10);

}

else{

Count=sumDigits(n/10)+sumDigits(n%10);

}

return Count;



}

Comments

Post a Comment

Popular posts from this blog

defining functions clojure

(defn saysomething      " i dont want to talk to you"      [name]      (str "why is it so?" name)) #'my-clojureproject1.core/saysomething => (println (saysomething "anjana") => (defn saymorethings "what do you want to hear" [name] (str "life is a box of chocolates" name)) #'my-clojureproject1.core/saymorethings => (println (saymorethings "nirosha")             ) life is a box of chocolatesnirosha nil
Read more

Integrating Struts2 with Spring Security using Custom Login Form

Integrating Struts2 with Spring Security involves few configurations. Add all the spring core and spring security related jars-- spring -3.0.6 Struts2-Action :gets user principal and displays it on jsp after authentication package com.prdc.spring3; import java.util.ArrayList; import javax.servlet.http.HttpServletRequest; import java.util.Iterator; import java.util.List; import java.util.Properties; import java.util.Set; import org.apache.struts2.ServletActionContext; public class HelloWorld { private String message; private String username; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public String execute() { /*to get the authenticated username*/ HttpServletRequest request = ServletActionContext.getRequest(); this.setUsername(request.getUserPrincipal().getName());
Read more