leonglkw
Posts: 43
Nickname: leonglkw
Registered: Feb, 2004
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Re: How to combine subfunction into Main Program
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Posted: Feb 29, 2004 9:29 AM
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Hi TWC,
This is the code that works but is not designed in OOP way.
Is there any ways to modify to be OOP and the data is read/write from the I/O file instead of during run time.
import java.io.*;
class Product {
String[] category;
String[] favourite;
int[] qtyPrepared;
int[] qtySold;
int[] costPrice;
int[] sellingPrice;
int[] totalSellingPrice;
int[] totalCostPrice;
int[] difference;
}
class ComputerMart {
public static void main(String[] args) throws IOException{
// Declare computer product array and allocate storage
String[] category = { "Computer", "Printer", "Scanner" };
String[] favourite = { "[c1]DELL", "[c2]Compaq", "[c3]HP", "[p1]Digitech", "[p2]HP", "[s1]HP", "[s2]Digitech" };
int[] qtyPrepared = { 2, 4, 2, 20, 20, 100, 100 };
int[] qtySold = { 0, 0, 0, 0, 0, 0, 0 };
int[] costPrice = { 1000, 900, 1200, 150, 180, 100, 80 };
int[] sellingPrice = { 1700, 1200, 1500, 200, 300, 150, 120 };
int[] totalSellingPrice = { 0, 0, 0, 0, 0, 0, 0 };
int[] totalCostPrice = { 0, 0, 0, 0, 0, 0, 0 };
int[] difference = { 0, 0, 0, 0, 0, 0, 0 };
while(true){
// Display the main screen
System.out.println("\n\n");
System.out.println("\t\tComputerMart, Madanne Amanda Smith");
System.out.println("\n");
System.out.println("Category\tFavourite\tQty Prepared\tQty Sold\tSelling Price($)");
System.out.println("--------------------------------------------------------------------------------");
System.out.println( category[0] + "\t" + favourite[0] + "\t" + qtyPrepared[0] + "\t\t" + qtySold[0] + "\t\t" + sellingPrice[0]);
System.out.println( category[0] + "\t" + favourite[1] + "\t" + qtyPrepared[1] + "\t\t" + qtySold[1] + "\t\t" + sellingPrice[1]);
System.out.println( category[0] + "\t" + favourite[2] + "\t\t" + qtyPrepared[2] + "\t\t" + qtySold[2] + "\t\t" + sellingPrice[2]);
System.out.println( category[1] + "\t\t" + favourite[3] + "\t" + qtyPrepared[3] + "\t\t" + qtySold[3] + "\t\t" + sellingPrice[3]);
System.out.println( category[1] + "\t\t" + favourite[4] + "\t\t" + qtyPrepared[4] + "\t\t" + qtySold[4] + "\t\t" + sellingPrice[4]);
System.out.println( category[2] + "\t\t" + favourite[5] + "\t\t" + qtyPrepared[5] + "\t\t" + qtySold[5] + "\t\t" + sellingPrice[5]);
System.out.println( category[2] + "\t\t" + favourite[6] + "\t" + qtyPrepared[6] + "\t\t" + qtySold[6] + "\t\t" + sellingPrice[6]);
System.out.println("--------------------------------------------------------------------------------");
System.out.println("[S]ales\t\t[D]aily Order\t\t[C]ollection\t\t[E]xit");
System.out.println("\n");
// Get user input to make option of Sales function, Daily Order function, Collection function and Exit function
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input = new BufferedReader(reader);
System.out.print(">Option: ");
String text = input.readLine();
System.out.println("Your choice: " + text);
if(text.equalsIgnoreCase("S")){
System.out.println("Sales");
try
{
String prdCode ="";
String prdQuantity = "0";
String morePrd ="";
while(true)
{
InputStreamReader inReader = new InputStreamReader(System.in);
BufferedReader BuffReader = new BufferedReader(inReader);
System.out.println("Items sold:-");
System.out.print("Enter product code: ");
prdCode = BuffReader.readLine();
System.out.print("Enter quantity: ");
prdQuantity = BuffReader.readLine();
int prdQty = new Integer(prdQuantity).intValue();
if(prdCode.equalsIgnoreCase("c1") && qtyPrepared[0] >= prdQty){
qtyPrepared[0] = qtyPrepared[0] - prdQty;
qtySold[0] = qtySold[0] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[0]);
System.out.print("Quantity Sold =" + qtySold[0]);
}
else if (prdCode.equalsIgnoreCase("c2") && qtyPrepared[1] >= prdQty){
qtyPrepared[1] = qtyPrepared[1] - prdQty;
qtySold[1] = qtySold[1] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[1]);
System.out.print("Quantity Sold =" + qtySold[1]);
}
else if (prdCode.equalsIgnoreCase("c3") && qtyPrepared[2] >= prdQty){
qtyPrepared[2] = qtyPrepared[2] - prdQty;
qtySold[2] = qtySold[2] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[2]);
System.out.print("Quantity Sold =" + qtySold[2]);
}
else if (prdCode.equalsIgnoreCase("p1") && qtyPrepared[3] >= prdQty){
qtyPrepared[3] = qtyPrepared[3] - prdQty;
qtySold[3] = qtySold[3] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[3]);
System.out.print("Quantity Sold =" + qtySold[3]);
}
else if (prdCode.equalsIgnoreCase("p2") && qtyPrepared[4] >= prdQty){
qtyPrepared[4] = qtyPrepared[4] - prdQty;
qtySold[4] = qtySold[4] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[4]);
System.out.print("Quantity Sold =" + qtySold[4]);
}
else if (prdCode.equalsIgnoreCase("s1") && qtyPrepared[5] >= prdQty){
qtyPrepared[5] = qtyPrepared[5] - prdQty;
qtySold[5] = qtySold[5] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[5]);
System.out.print("Quantity Sold =" + qtySold[5]);
}
else if (prdCode.equalsIgnoreCase("s2") && qtyPrepared[6] >= prdQty){
qtyPrepared[6] = qtyPrepared[6] - prdQty;
qtySold[6] = qtySold[6] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[6]);
System.out.print("Quantity Sold =" + qtySold[6]);
}
else
System.out.println("Insufficient Qty.-Please come again");
System.out.print("\n");
System.out.print("More items[Y/N]?:");
morePrd = BuffReader.readLine();
if(morePrd.equalsIgnoreCase("N")){
System.out.println("\n");
System.out.println(">Press any key to continue");
break;
}
else
continue;
}
}
catch(Exception e )
{
System.out.println("ERROR " + e);
}
}
else if (text.equalsIgnoreCase("D")){
System.out.println("Daily Order");
try
{
String prdCode ="";
String prdQuantity = "0";
String morePrd ="";
InputStreamReader inReader = new InputStreamReader(System.in);
BufferedReader BuffReader = new BufferedReader(inReader);
System.out.println("Items ordered:-");
while(true)
{
System.out.print("Enter product code: ");
prdCode = BuffReader.readLine();
System.out.print("Enter quantity: ");
prdQuantity = BuffReader.readLine();
int prdQty = new Integer(prdQuantity).intValue();
if((prdCode.equalsIgnoreCase("c1")||prdCode.equalsIgnoreCase("c2")||prdCode.equalsIgnoreCase("c3")) && prdQty <= 1)
System.out.println("Minimum qty requirement not met!!!");
if(prdCode.equalsIgnoreCase("c1")){
qtyPrepared[0] = qtyPrepared[0] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[0]);
}
else if (prdCode.equalsIgnoreCase("c2")){
qtyPrepared[1] = qtyPrepared[1] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[1]);
}
else if (prdCode.equalsIgnoreCase("c3")){
qtyPrepared[2] = qtyPrepared[2] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[2]);
}
else if (prdCode.equalsIgnoreCase("p1")){
qtyPrepared[3] = qtyPrepared[3] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[3]);
}
else if (prdCode.equalsIgnoreCase("p2")){
qtyPrepared[4] = qtyPrepared[4] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[4]);
}
else if (prdCode.equalsIgnoreCase("s1")){
qtyPrepared[5] = qtyPrepared[5] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[5]);
}
else if (prdCode.equalsIgnoreCase("s2")){
qtyPrepared[6] = qtyPrepared[6] + prdQty;
System.out.println("Quantity prepared =" + qtyPrepared[6]);
}
else
System.out.println("Wrong Product Code Entered!!!");
System.out.print("More items[Y/N]?:");
morePrd = BuffReader.readLine();
if(morePrd.equalsIgnoreCase("N"))
break;
else
continue;
}
}
catch(Exception e )
{
System.out.println("ERROR " + e);
}
}
else if (text.equalsIgnoreCase("C")){
int sumTotalCostPrice = totalCostPrice[0] + totalCostPrice[1] + totalCostPrice[2] + totalCostPrice[3] + totalCostPrice[4] + totalCostPrice[5] + totalCostPrice[6];
int sumTotalSellingPrice = totalSellingPrice[0] + totalSellingPrice[1] + totalSellingPrice[2] + totalSellingPrice[3] + totalSellingPrice[4] + totalSellingPrice[5] + totalSellingPrice[6];
int sumDifference = sumTotalSellingPrice - sumTotalCostPrice;
totalCostPrice[0] = qtyPrepared[0] * costPrice[0];
totalCostPrice[1] = qtyPrepared[1] * costPrice[1];
totalCostPrice[2] = qtyPrepared[2] * costPrice[2];
totalCostPrice[3] = qtyPrepared[3] * costPrice[3];
totalCostPrice[4] = qtyPrepared[4] * costPrice[4];
totalCostPrice[5] = qtyPrepared[5] * costPrice[5];
totalCostPrice[6] = qtyPrepared[6] * costPrice[6];
totalSellingPrice[0] = qtySold[0] * sellingPrice[0];
totalSellingPrice[1] = qtySold[1] * sellingPrice[1];
totalSellingPrice[2] = qtySold[2] * sellingPrice[2];
totalSellingPrice[3] = qtySold[3] * sellingPrice[3];
totalSellingPrice[4] = qtySold[4] * sellingPrice[4];
totalSellingPrice[5] = qtySold[5] * sellingPrice[5];
totalSellingPrice[6] = qtySold[6] * sellingPrice[6];
difference[0] = totalSellingPrice[0] - totalCostPrice[0];
difference[1] = totalSellingPrice[1] - totalCostPrice[1];
difference[2] = totalSellingPrice[2] - totalCostPrice[2];
difference[3] = totalSellingPrice[3] - totalCostPrice[3];
difference[4] = totalSellingPrice[4] - totalCostPrice[4];
difference[5] = totalSellingPrice[5] - totalCostPrice[5];
difference[6] = totalSellingPrice[6] - totalCostPrice[6];
System.out.println("\n\n");
System.out.println("\t\tComputerMart, Madanne Amanda Smith");
System.out.println("\t\t\tDaily Sales Collection");
System.out.println("\n");
System.out.println("\t\t\t\tQuantity\tTotal Price($)");
System.out.println("Category\tFavourite Prepared Sold\tCost Selling\tDifference($)");
System.out.println("--------------------------------------------------------------------------------");
System.out.println(category[0] + "\t" + favourite[0] + "\t" + qtyPrepared[0] + "\t" + qtySold[0] + "\t" + totalCostPrice[0] + "\t" + totalSellingPrice[0] + "\t" + difference[0]);
System.out.println(category[0] + "\t" + favourite[1] + "\t" + qtyPrepared[1] + "\t" + qtySold[1] + "\t" + totalCostPrice[1] + "\t" + totalSellingPrice[1] + "\t" + difference[1]);
System.out.println(category[0] + "\t" + favourite[2] + "\t\t" + qtyPrepared[2] + "\t" + qtySold[2] + "\t" + totalCostPrice[2] + "\t" + totalSellingPrice[2] + "\t" + difference[2]);
System.out.println(category[1] + "\t\t" + favourite[3] + "\t" + qtyPrepared[3] + "\t" + qtySold[3] + "\t" + totalCostPrice[3] + "\t" + totalSellingPrice[3] + "\t" + difference[3]);
System.out.println(category[1] + "\t\t" + favourite[4] + "\t\t" + qtyPrepared[4] + "\t" + qtySold[4] + "\t" + totalCostPrice[4] + "\t" + totalSellingPrice[4] + "\t" + difference[4]);
System.out.println(category[2] + "\t\t" + favourite[5] + "\t\t" + qtyPrepared[5] + "\t" + qtySold[5] + "\t" + totalCostPrice[5] + "\t" + totalSellingPrice[5] + "\t" + difference[5]);
System.out.println(category[2] + "\t\t" + favourite[6] + "\t" + qtyPrepared[6] + "\t" + qtySold[6] + "\t" + totalCostPrice[6] + "\t" + totalSellingPrice[6] + "\t" + difference[6]);
System.out.println("--------------------------------------------------------------------------------");
System.out.println("Total" + "\t\t\t\t\t\t" + sumTotalCostPrice + "\t" + sumTotalSellingPrice + "\t" + sumDifference);
System.out.println("\n");
System.out.println(">Press any key to continue");
}
else if (text.equalsIgnoreCase("E")){
System.out.println("Exit");
System.exit(0);
}
else
System.out.println("Invalid Option!");
String moreTransaction = input.readLine();
if(moreTransaction.equalsIgnoreCase("N"))
break;
else
continue;
}
}
}
thank you.
I still have about 8 hrs to meet the deadline.
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