# Java Array Tutorials
# Java Array Programs
➤ Count Even and Odd numbers in an Array
➤ Put Even and Odd Elements in 2 Separate Arrays
➤ Display Even and Odd numbers in an Array
➤ Sum of Even and Odd Numbers in Array in Java
➤ Remove odd numbers from an array java
➤ Count positive negative and zero from Array
➤ Print all negative elements in an array
➤ Separate positive and negative numbers in an array
➤ Find the sum of positive numbers in an array
➤ The cumulative sum of an array in Java
➤ Find numbers that are greater than the given number from an array
➤ Find average and numbers greater than average in array
Program description:- Write a Java program to find the sum of even and odd numbers in an array. Display the sum value.
Example1:-
Array = {11, 12, 13, 14, 15}
Odd numbers sum = 39
Even numbers sum = 26
Example2:-
Array = {-15, -10, -5, 0, 5, 10, 15}
Odd numbers sum:- 0
Even numbers sum:- 0
Prerequisite:- Array in Java, find length of array in Java
In this program, we will take input value for the array from the end-user, but you can take it explicitly. See:- how to take array input in Java. We will use a method to perform the operation.
Procedure to find the sum of even and odd numbers in Java array,
a) Take an array.
b) Take two variables to store the sum of even and odd numbers. Assume they are evenSum, and oddSum. Initialize them with 0.
c) Traverse the array.
d) Check each element of the array.
e) If the element is an even number then add it to evenSum.
f) Else add it to oddSum.
g) Display evenSum, and oddSum values.
Java Program to Find Sum of Even and Odd Numbers in given Array
import java.util.Arrays; import java.util.Scanner; public class ArrayTest { public static void main(String[] args) { // create Scanner class object to take input Scanner scan = new Scanner(System.in); // read size of the array System.out.print("Enter size of the array: "); int n = scan.nextInt(); // create an int array of size n int numbers[] = new int[n]; // take input for the array System.out.println("Enter array elements: "); for (int i = 0; i < n; ++i) { numbers[i] = scan.nextInt(); } // find of odd and even oddEvenSum(numbers); // close Scanner scan.close(); } // method to find sum of even-odd in array public static void oddEvenSum(int[] numbers) { // variables int oddSum = 0; int evenSum = 0; // check each element and add for (int num : numbers) { if (num % 2 == 0) { // even evenSum += num; } else { // odd oddSum += num; } } // display resultant values System.out.println("Odd numbers sum = " + oddSum); System.out.println("Even numbers sum = " + evenSum); } }
Output:-
Enter the size of the array: 5
Enter array elements:
11 12 13 14 15
Odd numbers sum = 39
Even numbers sum = 26
Enter the size of the array: 7
Enter array elements:
9 8 7 6 5 4 3
Odd numbers sum = 24
Even numbers sum = 18
Also see:-
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