Java Programs Understanding Pseudocode, Flowcharts, and the Test Plan

“Understanding Pseudocode, create Flowcharts, and a the Test Plan,” create a Word document that contains the pseudocode, flowchart, and test plan for both projects.

here is project program 1 Count positive and negative numbers and compute the average of numbers)

Write a program that reads an unspecified number of integers, determines how many positive and negative values have been read, and computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number.

Sample Run 1

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 5.0

The average is 1.25

Sample Run 2

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

No numbers are entered except 0

Sample Run 3

Enter an integer, the input ends if it is 0: 2 3 4 5 0

The number of positives is 4

The number of negatives is 0

The total is 14

The average is 3.5

Sample Run 4

Enter an integer, the input ends if it is 0: -4 3 2 -1 0

The number of positives is 2

The number of negatives is 2

The total is 0

The average is 0.0

Class Name: Exercise05_01

this is the program:

import java.util.Scanner;



public class Exercise05_01 {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

int positiveCount = 0;

int negativeCount = 0;

double total = 0;



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



while (true) {

int number = input.nextInt();



if (number == 0) {

break;

} else if (number > 0) {

positiveCount++;

} else {

negativeCount++;

}



total += number;

}



input.close();



if (positiveCount + negativeCount == 0) {

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

} else {

double average = total / (positiveCount + negativeCount);



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

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

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

System.out.println("The average is " + average);

}

}

}



Projet 2 program 2 (Business: check ISBN-13)

ISBN-13 is a new standard for identifying books. It uses 13 digits d1d2d3d4d5d6d7d8d9d10d11d12d13. The last digit d13 is a checksum, which is calculated from the other digits using the following formula:

10 - (d1 + 3d2 + d3 + 3d4 + d5 + 3d6 + d7 + 3d8 + d9 + 3d10 + d11 + 3d12) % 10

If the checksum is 10, replace it with 0. Your program should read the input as a string.

Display “invalid input” if the input is incorrect.

Sample Run 1

Enter the first 12 digits of an ISBN-13 as a string: 978013213080

The ISBN-13 number is 9780132130806

Sample Run 2

Enter the first 12 digits of an ISBN-13 as a string: 978013213079

The ISBN-13 number is 9780132130790

Sample Run 3

Enter the first 12 digits of an ISBN-13 as a string: 97801320

97801320 is an invalid input

Class Name: Exercise05_47



program 2

import java.util.Scanner;



public class Exercise05_47 {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);



System.out.print("Enter the first 12 digits of an ISBN-13 as a string: ");

String inputString = input.nextLine();



if (inputString.length() != 12) {

System.out.println(inputString + " is an invalid input");

} else {

int checksum = calculateChecksum(inputString);

String isbn13 = inputString + checksum;

System.out.println("The ISBN-13 number is " + isbn13);

}



input.close();

}



public static int calculateChecksum(String inputString) {

int sum = 0;

for (int i = 0; i < inputString.length(); i++) {

int digit = Character.getNumericValue(inputString.charAt(i));

if (i % 2 == 0) {

sum += digit;

} else {

sum += 3 * digit;

}

}



int checksum = 10 - (sum % 10);

if (checksum == 10) {

return 0;

} else {

return checksum;

}

}

}