# Java Array Exercises: Find the two elements from a given array of positive and negative numbers such that their sum is closest to zero

## Java Array: Exercise-40 with Solution

Write a Java program to find the two elements from a given array of positive and negative numbers such that their sum is closest to zero.

**Sample Solution**:

**Java Code:**

```
import java.util.*;
import java.lang.*;
public class Main
{
public static void main (String[] args)
{
int arr[] = {1, 5, -4, 7, 8, -6};
int size = arr.length;
int l, r, min_sum, sum, min_l_num, min_r_num;
if(size < 2)
{
System.out.println("Invalid Input");
return;
}
min_l_num = 0;
min_r_num = 1;
min_sum = arr[0] + arr[1];
for(l = 0; l < size - 1; l++)
{
for(r = l+1; r < size; r++)
{
sum = arr[l] + arr[r];
if(Math.abs(min_sum) > Math.abs(sum))
{
min_sum = sum;
min_l_num = l;
min_r_num = r;
}
}
}
System.out.println("Two elements whose sum is minimum are "+
arr[min_l_num]+ " and "+arr[min_r_num]);
}
}
```

Sample Output:

Two elements whose sum is minimum are 5 and -4

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## Java: Tips of the Day

** countOccurrences**

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) { return Arrays.stream(numbers) .filter(number -> number == value) .count(); }

Ref: https://bit.ly/3kCAgLb

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