Question

Please Write in Java

15 salesmen have performed sales in 10 different cities and the information is stored in a two-dimensional array.

For example:

	City 0	City 1	City 2	City …	City 9
salesman 0	3.4	4.0	2.6	……	3.5
salesman 1	3.7	4.44	1.90	……	5.9
salesman …	1.5	5.9	7.4	……	0.0
salesman 14	44.4	5.6	7.8	…..	0.9

Write a class called Employee that contains the following methods

1. A static method called totalSales() (String name, double [][] arr, String[] nameList ) that return the salesman’s total sales. It has three parameters, one is the salesman’s name to search, one is the two-dimensional array that stores the sales information and the namelist holding all names. (5 pts)
2. A static method called sortNames (String[ ] a) that will sort the parameter String array a alphabetically in decreasing order (from highest to lowest) (5 pts bonus)

    Implement the main method as follows

1. You will declare a one-dimensional array to store the salesmen’s name. (1 pts)
2. You will declare a two dimensional array to store the salesmen’s sales information in 10 cities. (1pts)

Suppose you have already filled all the arrays.

3. Call totalSales() to calculate and display the total sales of the person called “John”. (4pts) (No points without function call)
4. Using the method defined in c. and d. to display all the salesmen’s name and total sales alphabetically in decreasing order. (4 pts) (No points without function call)

Note: Please add question numbers as the comments.

Answer 1

import java.text.DecimalFormat;

public class Employee {

/**
* @param args the command line arguments
*/
private static DecimalFormat df2 = new DecimalFormat("#.##");
public static void main(String[] args)
{
//i i have just creater only array with 3 employee and you can add
String []names={"Jay","Ajay","John"};
//ii sales 2d array data for above sales man
double [][]sales={{3.4,4.0,2.6,3.5,2.6,5.0,4.5,4.1,2.3,1.2},
{4.4,2.0,3.6,1.5,4.6,4.0,1.5,3.1,4.3,1.2},
{4.4,4.0,3.6,4.5,2.6,1.0,1.5,2.1,4.3,3.2},};
  
//iv
double totalSale=totalSales("John",sales,names);
System.out.println("John's total sale is : $"+ df2.format(totalSale));
sortNames(names);//iv
System.out.println("\n\n");
for(int i=0;i<names.length;i++)
{
totalSale=totalSales(names[i],sales,names);
System.out.println(names[i]+"'s total sale is : $"+ df2.format(totalSale));
}
}
//a
private static double totalSales(String name, double[][] sales, String[] names)
{
double sum=0;
for(int i=0;i<names.length;i++)
{
if(name.equals(names[i]))
{
for(int j=0;j<sales[i].length;j++)
{
sum+=sales[i][j];
}
}
}
return sum;
}
//b
private static void sortNames(String[] names) {
for (int i = 0; i < names.length; i++)
{
for (int j = i + 1; j < names.length; j++)
{
String tmp;
if (names[i].compareTo(names[j])<0)
{
tmp = names[i];
names[i] = names[j];
names[j] = tmp;
}
}
}
}
}
output

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