Java Software Solution Ch7_PP2

PP 7.2 Create a class called SalesPerson that represents a salesperson in an organization. The SalesPerson class should have the name, the phone number, and the assigned district of a salesperson. Each salesperson acquires a certain sale amount every day. Provide a constructor that sets all instance values based on parameter values. Overload the constructor such that each daily sale amount for a week is set to zero. Provide a method called setDailyAmount that accepts a day of a week as a number (0 for Sunday, 1 for Monday, and so on) and an amount and sets that amount as the daily sale amount. Provide another method called getDailyAmount that accepts a day of a week and returns the amount for that day. Provide a method called total that calculates the total sale amount for the week and a method called average that calculates the average daily sale amount for the week. Write a toString method that prints all the details of the salesperson. Write a driver class to exercise the SalesPerson class.

 

class SalesPerson {
    private String name;
    private String phoneNumber;
    private String district;
    private double[] dailySales;

    // Constructor to set all instance values based on parameter values
    public SalesPerson(String name, String phoneNumber, String district) {
        this.name = name;
        this.phoneNumber = phoneNumber;
        this.district = district;
        this.dailySales = new double[7]; // 7 days in a week
    }

    // Overloaded constructor to set daily sale amounts for a week to zero
    public SalesPerson(String name, String phoneNumber, String district, double[] dailySales) {
        this.name = name;
        this.phoneNumber = phoneNumber;
        this.district = district;
        this.dailySales = dailySales;
    }

    // Method to set daily sale amount for a specific day
    public void setDailyAmount(int dayOfWeek, double amount) {
        if (dayOfWeek >= 0 && dayOfWeek < 7) {
            dailySales[dayOfWeek] = amount;
        } else {
            System.out.println("Invalid day of the week.");
        }
    }

    // Method to get daily sale amount for a specific day
    public double getDailyAmount(int dayOfWeek) {
        if (dayOfWeek >= 0 && dayOfWeek < 7) {
            return dailySales[dayOfWeek];
        } else {
            System.out.println("Invalid day of the week.");
            return 0.0;
        }
    }

    // Method to calculate total sale amount for the week
    public double total() {
        double totalSales = 0.0;
        for (double sale : dailySales) {
            totalSales += sale;
        }
        return totalSales;
    }

    // Method to calculate average daily sale amount for the week
    public double average() {
        return total() / 7;
    }

    // toString method to print all the details of the salesperson
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("Name: ").append(name).append("\n");
        sb.append("Phone Number: ").append(phoneNumber).append("\n");
        sb.append("District: ").append(district).append("\n");
        sb.append("Daily Sales:\n");
        for (int i = 0; i < dailySales.length; i++) {
            sb.append("Day ").append(i).append(": ").append(dailySales[i]).append("\n");
        }
        sb.append("Total Sales: ").append(total()).append("\n");
        sb.append("Average Daily Sales: ").append(average()).append("\n");
        return sb.toString();
    }
    
    public String getName() {
		// TODO Auto-generated method stub
		return this.name = name;
	}
    
}
public class PP7_2 {
    public static void main(String[] args) {
        double[] dailySales = {100.0, 200.0, 150.0, 300.0, 250.0, 180.0, 210.0};
        SalesPerson salesPerson1 = new SalesPerson("John", "123-456-7890", "District A", dailySales);

        // Alternatively, you can create an instance using the first constructor
        // SalesPerson salesPerson1 = new SalesPerson("John Doe", "123-456-7890", "District A");

        // Set daily sale amount for a specific day
        salesPerson1.setDailyAmount(2, 175.0);

        // Get daily sale amount for a specific day
        System.out.println("Sales for day 2: $" + salesPerson1.getDailyAmount(2));

        // Print all details of the salesperson
        System.out.println(salesPerson1);
    }
}

 

< Console >

Sales for day 2: $175.0
Name: John
Phone Number: 123-456-7890
District: District A
Daily Sales:
Day 0: 100.0
Day 1: 200.0
Day 2: 175.0
Day 3: 300.0
Day 4: 250.0
Day 5: 180.0
Day 6: 210.0
Total Sales: 1415.0
Average Daily Sales: 202.14285714285714