The below program is used to count number of positives and number of negatives which are presented as inputs and finally calculate its sum and average as follows:

Program:

//import statement

import java.util.Scanner;

//class Excersise_1

public class Excersise_1 {

// main function

public static void main(String[] args) {

// declare and initialize the required variables

int count_Positive = 0, count_Negative = 0;

int counter = 0, sum = 0, integer;

// declare the input scanner

Scanner in = new Scanner(System.in);

// print the instruction

System.out.print("Enter an integer, the input ends if it is 0: ");

// read the integer value from user

integer = in.nextInt();

// using while loop, check the integer

while (integer != 0) {

// check if it is positive

if (integer > 0)

/* if so, increment the positive counter */

count_Positive++;

// check if it is negative

else if (integer < 0)

/* if so, increment the negative counter */

count_Negative++;

// calculate the total of integer

sum += integer;

// increment the counter

counter++;

// Read the next integer

integer = in.nextInt();

}

// check the counter is 0

if (counter == 0)

// if so, no inputs are read

System.out.println("No numbers are entered except 0");

else {

// print the number of positive integers

System.out.println("The number of positives is " + count_Positive);

// print the number of negative integers

System.out.println("The number of negatives is " + count_Negative);

// print the sum

System.out.println("The total is " + sum);

// print the overall average

System.out.println("The average is " + sum * 1.0 / counter);

}

}

}

Enter an integer, the input ends if it is 0: 1

2

-1

3

0

The number of positives is 3

The number of negatives is 1

The total is 5

The average is 1.25