Hello, this is my first time using chegg to post a question so in advance thanks

Question

Hello, this is my first time using chegg to post a question so in advance thanks for all help and I apologize if I seem clueless. my question is if anyone knows how to:

create a java program to

declare a properly-sized array of SalesPerson

read in all the information from both files and populate the array

find the lowest and highest sales person.

print a report to the console or a file.

using the following sales people/id numbers

with the following sales applied to the id numbers

again thank you so much for any help and have a great day.

Explanation / Answer

--------------------------------------------------Sales.java------------------------------------------------------------------

import java.io.File;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Scanner;

import java.util.Set;

public class Sales {

public static void main(String[] args)throws Exception {

//Reading data from the text file "Sales.txt"

Scanner sc_sales=new Scanner(new File("Sales.txt"));

//to save data of "Sales.txt" file

ArrayList<String> list_Sales=new ArrayList<>();

while(sc_sales.hasNext()) {

list_Sales.add(sc_sales.nextLine());

}

//In Hash Map String for id of sales person and ArrayList to save sales of that person

HashMap<String, ArrayList<Integer>> salesMap=new HashMap<>();

for(int i=0;i<list_Sales.size();i++)

{

String value=list_Sales.get(i);

String[] values=value.split(" ");

String key=values[0];

int sales[]= new int[values.length-1];

for(int j=1;j<values.length;j++)

{

sales[j-1]=Integer.parseInt(values[j]);;

}

for(int sale :sales)

{

if(salesMap.containsKey(key))

{

salesMap.get(key).add(sale);

}

else

{

ArrayList<Integer> arr=new ArrayList<>();

arr.add(sale);

salesMap.put(key, arr);

}

}

}

//for calculating the sales of each sales person

HashMap<String,Integer> totalSales=new HashMap<>();

Iterator<String> keySetIterator = salesMap.keySet().iterator();

while(keySetIterator.hasNext())

{

String key = keySetIterator.next();

ArrayList<Integer> person_Sales=salesMap.get(key);

int total_Sales=0;

for(int sales:person_Sales)

{

total_Sales+=sales;

}

totalSales.put(key, total_Sales);

//System.out.println(key + " : "+totalSales.get(key));// printing total sales of an id  

}

//Sorting the data according to total sales values

Set<Entry<String, Integer>> set = totalSales.entrySet();

List<Entry<String, Integer>> list = new ArrayList<Entry<String, Integer>>(set);

Collections.sort( list, new Comparator<Map.Entry<String, Integer>>()

{

public int compare( Map.Entry<String, Integer> o1, Map.Entry<String, Integer> o2 )

{

return (o2.getValue()).compareTo( o1.getValue() );

}

} );

//Reading data from the text file "SalesPerson.txt"

Scanner sc_person=new Scanner(new File("SalesPerson.txt"));

//to save data of "SalesPerson.txt" file

ArrayList<String> list_Person=new ArrayList<>();

while(sc_person.hasNext()) {

list_Person.add(sc_person.nextLine());

}

//using HashMap for saving data based on the id of sales Person

HashMap<String,String> person=new HashMap<>();

for(String li:list_Person)

{

String []data=li.split(" ");

String key=data[0];

String value=data[1];

person.put(key, value);

//for printing highest sales person

String []highest=list.get(0).toString().split("=");

if(highest[0].equals(key)){ //comparing id to get the name of person

System.out.print("Highest sales person : ");

System.out.println(value+ " with sales "+highest[1] );

}

//for printing lowest sales person

String []lowest=list.get(list.size()-1).toString().split("=");

if(lowest[0].equals(key)){ //comparing id to get the name of person

System.out.print("Lowest sales person : ");

System.out.println(value+ " with sales "+lowest[1] );

}

}

}

}

-------------------------------------------------Output-------------------------------------------------------

Highest sales person : Paulita Trevarthen with sales 89518
Lowest sales person : Nikia Fugitt with sales 3307

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