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Задача . CS SL 2017 Paper 2 - Option D


Задача

Темы:
The company employs several sales personnel to sell its products to different retailers.
Each branch of the company keeps track of its own sales with a suite of programs that include the two classes SalesPerson and Sales.

(a) Complete the constructor public SalesPerson(String id), from the SalesPerson class.
(b) Construct the method calcTotalSales(), in the SalesPerson class that calculates the total value of the sales for a specific SalesPerson object.

The salesPeople array contains 100 instantiated objects.
The company wishes to reward the salesperson whose sales have the largest total value.
(c) By making use of any previously written methods, construct the method highest(), that returns the ID of the salesperson whose sales have the largest total value.
(d) Construct the method addSales(Sales s, String id), in the Main class, that will add a new Sales object s, to the salesperson with a specified ID.
Note: You can assume that the ID is a valid one.
 

time 500 ms
memory 256 Mb
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 Кол-во
Java2
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Ваш ответ

Java
Напишите программу ниже 
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
class SalesPerson // each object contains details of one salesperson
{
    private String id;
    private Sales[] salesHistory; // details of the different sales
    private int count = 0; // number of sales made

    //constructor for a new salesperson
    public SalesPerson (String id)
    {  
this.id = id;
        salesHistory = new Sales [100];
    }
    // constructor for a salesperson transferred (together with
// their sales details) from another branch
    public SalesPerson(String id, Sales[] s, int c) {  


                                		
				

					
                                    
                                    
// code missing
    }

    public int getCount() {
        return count;
    }

    public String getId() {
        return id;
    }

    public void setSalesHistory(Sales s) {
        salesHistory[count] =s;
        count = count + 1;
    }

    public double calcTotalSales() // calculates total sales for the salesperson
    {
// code missing
       


                                		
				

					
                                    
                                    


                                		
				

					
                                    
                                    
    }
}
    class Sales // each object contains details of one sale
    {
        private String itemId; // id of the item
        private double value; // the price of one item
        private int quantity; // the number of the items sold
        // constructor missing
        public Sales(String itemid, double value, int quantity)
        {
            this.itemId = itemid;
            this.value = value;
            this.quantity = quantity;
        }
        public double getValue() {return value;}
        public int getQuantity() {return quantity;}
    }
public class Main
{
    public static void main(String[] args) {
        int n;

        Scanner in = new Scanner(System.in);
        SalesPerson[] salesPeople = new SalesPerson[6];
        salesPeople[0] = new SalesPerson("100");
        salesPeople[1] = new SalesPerson("101");
        salesPeople[2] = new SalesPerson("102");
        salesPeople[0].setSalesHistory(new Sales("A100",300.00,10));
        salesPeople[0].setSalesHistory(new Sales("A200",1000.00,2));
        salesPeople[1].setSalesHistory(new Sales("A300",2550.40,10));
        System.out.println(salesPeople[2].getId());
        System.out.println(salesPeople[0].getCount());
       // System.out.println(salesPeople[1].getSalesHistory(0).getValue());
        System.out.println(salesPeople[0].calcTotalSales());
    }
    }  


                                		
				

			

		

             
             

                
	

            


		
          

                           
                            
                 
                             
                          

         
	

      



    
                           

	
            
                
        






      

        
                      
              
    

            

                
            

            
                       

	
                        

                          
                         
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