# Sum of Positive Numbers in Array in Java

Program description:- Write a Java program to find the sum of positive numbers in an array. Display the sum value.

Example1:-
Array = {-10, 5, 0, -9, 18, 27, -36}
Sum of Positive numbers = 50

Example2:-
Array = {9, 8, 7, 0, -2, 5}
Sum of Positive numbers = 29

Example3:-
Array = {-50, -60, -70}
Sum of Positive numbers = 0

Prerequisite:- Array in Java, find length of array in Java, sum 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 positive numbers in the given array in Java,
a) Take an array.
b) Declare a variable to store the sum of positive numbers. Assume the variable is “sum”. Initialize it with 0.
c) Traverse through the given array.
d) Check each element whether it is a positive number or not?
e) If it is a positive number then add it to the sum value.
f) Display the resultant value.

## Java Program to Find the Sum of Positive Numbers in Array

```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();
}

// calculate the sum of positive numbers
int sum = positiveSum(numbers);

// display result
System.out.println("Sum of positive numbers = " + sum);

// close Scanner
scan.close();
}

// method to display negative numbers
public static int positiveSum(int[] numbers) {
// variable
int sum = 0;
// traverse through the array
for (int i : numbers) {
if(i >= 0) sum += i;
}
// return
return sum;
}
}```

Output:-

Enter the size of the array: 7
Enter array elements:
-10 5 0 -9 18 27 -36
Sum of positive numbers = 50

Enter the size of the array: 6
Enter array elements:
9 8 7 0 -2 5
Sum of positive numbers = 29

Enter the size of the array: 3
Enter array elements:
-50 -60 -70
Sum of positive numbers = 0

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