Answers for "sum of all even numbers formula java"

1

Java program to calculate sum of even and odd numbers in an array

// Java program to calculate sum of even and odd numbers in an array
import java.util.Scanner;
public class FindSumOf
{
   public static void main(String[] args)
   {
      int number, sumEven = 0, sumOdd = 0;
      Scanner sc = new Scanner(System.in);
      System.out.println("Please enter number of elements in an array: ");
      number = sc.nextInt();
      int[] arrNumbers = new int[number];
      System.out.println("Please enter elements of the array: ");
      for(int a = 0; a < number; a++)
      {
         arrNumbers[a] = sc.nextInt();
      }
      for(int a = 0; a < number; a++)
      {
         if(arrNumbers[a] % 2 == 0)
         {
            sumEven = sumEven + arrNumbers[a];
         }
         else
         {
            sumOdd = sumOdd + arrNumbers[a];
         }
      }
      System.out.println("Sum of even numbers in an array: " + sumEven);
      System.out.println("Sum of odd numbers in an array : " + sumOdd);
      sc.close();
   }
}
Posted by: Guest on February-22-2021
0

how to output sum of even numbers in java between two user values

//import classes
import java.util.*;

public class chapter5no9
{
    static Scanner console = new Scanner(System.in);

    public static void main(String[] args)
    {

    //Part A
    int firstNum;
    int secondNum;
    int sumEven;

    System.out.println("Please enter an integer: ");
    firstNum = console.nextInt();

    System.out.println("Please enter another integer less than the first integer: ");
    secondNum = console.nextInt();

    //Part B
    if (firstNum < secondNum)
    {
        System.out.print("Your second number is greater than the first.  So Please re-enter: ");
        secondNum = console.nextInt();
    }
    else
    {
        System.out.print("Odd Numbers: ");
        firstNum++;
        while (firstNum > secondNum)
        {
            if (secondNum % 2 != 0)
            {
                System.out.print(" " + secondNum);
            }
            secondNum++;
        }

        System.out.println();
        System.out.print("Sum of Even Numbers: ");
        firstNum++;
        while (firstNum > secondNum)
        {
            if (secondNum % 2 != 0)
            {
                System.out.print(" " + secondNum);
            }
            secondNum++;
        }
    }
}
Posted by: Guest on November-06-2020

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