Write a program that lets the user enter four quarterly sales figures for six di

Question

Write a program that lets the user enter four quarterly sales figures for six divisions of a company. The figures should be stored in a one dimensional array. Once the figures are entered the program should display the following for each quarter (You can organize usage of 1 dimensional array dimension). A list of the sales figures by division. Each division increase or decrease from the previous quarter(this will not be displayed for the first quarter). The total sales for the quarter. The company's increase or decrease from previous quarter(this will not be displayed for the first quarter). The average sales for all divisions that quarter. f. The division with the highest sales for that quarter. Input Validation: Do not accept negative numbers for sales figures.

Explanation / Answer

import static java.lang.System.out;
import java.util.Scanner;
public class QSales
{
public static final int NUM_DIVISIONS = 6;
String[] names = new String[NUM_DIVISIONS];
double[][] figure = new double[names.length][4];
static String[] Quarters = {"Names\Quarters","Quarter 1","Quarter 2","Quarter 3","Quarter 4"};
public void getInputs()
{
Scanner in = new Scanner(System.in).useDelimiter(" ");
for(int i=0;i<names.length;i++)
{
out.print("Enter Name of Division: ");
names[i] = in.next();
out.println("Enter Quarterly Sales figures for division '"+names[i]+"'");
out.println("Instructions: Put 'Q'<QuarterNumber>:<Figure> for entering each Quarterly figure. Example Input: Q1:12345");
out.println("Type 'help' for the List of Available Commands.");
while(true)
{
out.print(">");
String comm = in.next();
if(comm.charAt(0)=='q'||comm.charAt(0)=='Q')
{
if(comm.indexOf(":")==-1)continue;
double val = Double.parseDouble(comm.split(":")[1]!=null?comm.split(":")[1]:"0");
if(val<0)
{
out.println("Sales figure dipped below 0. Try Again.");
continue;
}
switch(comm.charAt(1))
{
case '1':figure[i][0] = val;break;
case '2':figure[i][1] = val;break;
case '3':figure[i][2] = val;break;
case '4':figure[i][3] = val;break;
default: out.println("Invalid Quarter.");continue;
}
out.println("Sales figure for Quarter "+comm.charAt(1)+" entered.");
}
if(comm.toLowerCase().startsWith("return"))
{
out.println(" Your Entry:");
displayAsTable(Quarters,new String[]{names[i]},convertToString(toSingleArray(i)));
out.print(" Confirm?(y/n):");
if(in.next().toLowerCase().charAt(0)=='y')
break;
}
if(comm.toLowerCase().startsWith("display"))
{
displayAsTable(Quarters,new String[]{names[i]},convertToString(toSingleArray(i)));
}
if(comm.toLowerCase().startsWith("help")){
out.println(" 'return' - Enter Stop entering Sales Figures for this Division. 'display' - View Data Entered. 'help' - This message.");
}
}
}
}
double[][] toSingleArray(int no)
{
return new double[][]{figure[no]};
}
public void displayAsTable(String[] ColumnName, String[] RowName, String[][] data)
{
int max_len = 0;
for(int i=0;i<ColumnName.length;i++)
{
if(max_len<ColumnName[i].length())
max_len = ColumnName[i].length();
}
for(int i=0;i<RowName.length;i++)
{
if(max_len<RowName[i].length())
max_len = RowName[i].length();
}
for(int i=0;i<data.length;i++)
{
for(int j=0;j<data.length;j++)
{
if(max_len<data[i][j].length())
max_len = data[i][j].length();
}
}
String hr = "+";
for(int i=0;i<ColumnName.length;i++)
{
for(int j=0;j<max_len;j++)
hr+="-";
hr+="+";
}
out.print(hr+" |");
for(int i=0;i<ColumnName.length;i++)
{
for(int l= ColumnName[i].length();l<max_len;l++)
ColumnName[i]+=" ";
out.print(ColumnName[i]+"|");
}
out.print(" "+hr+" |");
for(int i = 0;i<data.length;i++)
{
for(int l= RowName[i].length();l<max_len;l++)
RowName[i]+=" ";
out.print(RowName[i]+"|");
for(int j=0;j<data[0].length;j++)
{
for(int l= data[i][j].length();l<max_len;l++)
data[i][j]+=" ";
out.print(data[i][j]+"|");
}
if(i!=data.length-1)
out.print(" "+hr+" |");
else
out.print(" ");
}
out.println(hr);
}
String[][] convertToString(double[][] input)
{
String[][] out = new String[input.length][input[0].length];
for(int i = 0;i<input.length;i++)
for(int j=0;j<input[i].length;j++)
out[i][j] = Double.toString(input[i][j]);
return out;
}
String[][] convertToString(boolean[][] input)
{
String[][] out = new String[input.length][input[0].length];
for(int i = 0;i<input.length;i++)
for(int j=0;j<input[i].length;j++)
out[i][j] = input[i][j]?"u2713":"";
return out;
}
boolean[][] highestSalesPerQtr()
{
boolean[][] hi = new boolean[figure.length][figure[0].length];
for(int i = 0;i<figure[0].length;i++){
int max=0;
for(int j=0;j<figure.length;j++)
if(figure[max][i]<figure[j][i])
max = j;
hi[max][i] = true;
}
return hi;
}
double[][] avgSalesPerQtr()
{
double[][] avg = totalSalesPerQtr();
for(int i = 0;i<avg[0].length;i++)
{
avg[0][i] = avg[0][i]/figure.length;
}
return avg;
}
double[][] totalSalesPerQtr()
{
double[][] total = new double[1][figure[0].length];
for(int i = 0;i<figure[0].length;i++)
{
double sum = 0;
for(int j=0;j<figure.length;j++)
{
sum+=figure[j][i];
}
total[0][i] = sum;
}
return total;
}
double[][] diffSales()
{
double[][] diff = new double[figure.length][figure[0].length];
for(int i = 0;i<figure.length;i++)
{
for(int j=1;j<figure[i].length;j++)
{
diff[i][j] = figure[i][j]-figure[i][j-1];
}
}
return diff;
}
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
out.println("------------------------------------------");
out.println(" Accounting");
out.println("------------------------------------------");
out.println(" Input");
out.println("------------------------------------------");
QSales sales = new QSales();
sales.getInputs();
out.println("------------------------------------------");
out.println(" Menu");
out.println("------------------------------------------");
out.println("1. Display Input");
out.println("2. Display Average Sales");
out.println("3. Display Total Sales");
out.println("4. Highest Sales Per Quarter");
out.println("5. Increase/Decrease in Sales Per Quarter");
out.println("6. Exit");
while(true)
{
out.print(">");
switch(in.nextInt())
{
case 1:out.println(" Input Data:");
sales.displayAsTable(sales.Quarters,sales.names,sales.convertToString(sales.figure));
break;
case 2:out.println(" Average Sales Per Quarter:");
sales.displayAsTable(Quarters,new String[]{"Average"},sales.convertToString(sales.avgSalesPerQtr()));
break;
case 3:out.println(" Total Sales Per Quarter:");
sales.displayAsTable(Quarters,new String[]{"Total"},sales.convertToString(sales.totalSalesPerQtr()));
break;
case 4:out.println(" Highest Sales Per Quarter:");
sales.displayAsTable(Quarters,sales.names,sales.convertToString(sales.highestSalesPerQtr()));
break;
case 5:out.println(" Increase/Decrease in Sales Per Quarter:");
sales.displayAsTable(Quarters,sales.names,sales.convertToString(sales.diffSales()));
break;
default:return;
}
}
}
}

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