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Athreya Vishal
Java Program
1 Answer(s)      5 years and 8 months ago
Posted in : Java Beginners

I want the answer for this question.

Question: Write a program to calculate and print the sum of odd numbers and the sum of even numbers for the first n natural numbers, where n is given as input from the user(using for loop).

Instructions: *You should surely use Functions in this question (That is an order from my teacher). :-( *BufferedReader should also be used as it is an input from the user. *For loop should be used.

Thank you! :-)

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August 23, 2011 at 12:21 PM

import java.io.*;
public class EvenOddExample{
public static int evenSum(int n){
int sum=0;
for(int i=1;i<=n;i++){
if(i%2==0){
sum+=i;
}
}
return sum;
}
public static int oddSum(int n){
int sum=0;
for(int i=1;i<=n;i++){
if(i%2!=0){
sum+=i;
}
}
return sum;
}
public static void main(String[]args)throws Exception{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Number: ");
int n=Integer.parseInt(br.readLine());
System.out.println("Sum of Odd Numbers between 1 and "+n+" are: "+oddSum(n));
System.out.println("Sum of Even Numbers between 1 and "+n+" are : "+evenSum(n));
}
}

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