Matin.Mortazavi/HW-06-exceptions-and-file-handling
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The code is complete, but it has some bugs that need fixing.

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This commit is contained in:
Matin
2026-05-21 03:39:19 +04:30
parent b3918fd47f
commit 54c43e95ee
2 changed files with 40 additions and 84 deletions
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src/main/java/Main.java
+5 -41
View File
@@ -17,49 +17,13 @@ public class Main {
while (scanner.hasNextLine())
{
String ln = scanner.nextLine() ;
int part_number = 0 ;
String part = "";
String product_id = "" ;
String product_name = "" ;
String product_price = "" ;
for (char x : ln.toCharArray() )
{
String[] part = ln.split(",");
String product_id = part[0] ;
String product_name = part[1] ;
String product_price = part[2] ;
if (x != ',')
{
part = part + x ;
}
else if (x == ',')
{
switch (part_number)
{
case 0 :
product_id = part ;
part = "" ;
part_number ++ ;
break;
productCatalog.add(new Product(Integer.parseInt(product_id), product_name , Float.parseFloat(product_price))) ;
case 1 :
product_name = part ;
part = "" ;
part_number ++ ;
break;
case 2 :
product_price = part ;
part = "" ;
part_number ++ ;
break;
}
}
productCatalog.add(new Product(Integer.parseInt(product_id), product_name , Float.parseFloat(product_price))) ;
}
}
// TODO:
src/main/java/ReportGenerator.java
+35 -43
View File
@@ -1,3 +1,5 @@
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
@@ -27,53 +29,20 @@ public class ReportGenerator {
}
public void processFile() throws IOException {
InputStream input = ReportGenerator.class
.getClassLoader()
.getResourceAsStream("products.csv");
InputStream input = getClass().getClassLoader().getResourceAsStream (ordersFilePath);
if (input == null) {
throw new IOException("products.csv not found");
throw new IOException("not found");
}
Scanner scanner = new Scanner(input);
while (scanner.hasNextLine())
{
String ln = scanner.nextLine() ;
int part_number = 0 ;
String part = "";
String product_id = "" ;
String product_number = "" ;
String product_discount = "" ;
for (char x : ln.toCharArray() )
{
if (x != ',')
{
part = part + x ;
}
else if (x == ',')
{
switch (part_number)
{
case 0 :
product_id = part ;
part = "" ;
part_number ++ ;
break;
case 1 :
product_number = part ;
part = "" ;
part_number ++ ;
break;
case 2 :
product_discount = part ;
part = "" ;
part_number ++ ;
break;
String[] part = ln.split(",") ;
String product_id = part[0] ;
String product_number = part[1] ;
String product_discount = part[2] ;
}
}
if (isNumber(product_id) && isNumber(product_number ) && isNumber(product_discount))
{
@@ -97,6 +66,17 @@ public class ReportGenerator {
totalInvalidLines ++ ;
continue;
}
for (Product p : productList)
{
if (p.getProductID() == id)
{
totalFinalCost = totalFinalCost + ((p.getPrice()*(100-discount)/100)*number) ;
totalDiscountValue = totalDiscountValue + ((p.getPrice()*discount/100)*number);
}
}
totalQuantity ++ ;
}
@@ -151,8 +131,22 @@ public class ReportGenerator {
// 12. Close all file resources
}
public void saveReport()
{
public void saveReport() throws IOException {
BufferedWriter writer = new BufferedWriter(new FileWriter("report.txt")) ;
writer.write("========= SALES REPORT =========");
writer.newLine();
writer.write("Total Quantity Sold:" + totalQuantity);
writer.newLine();
writer.write("Total Final Cost: $" + totalFinalCost);
writer.newLine();
writer.write("Total Discount Value: $" + totalDiscountValue);
writer.newLine();
writer.write("Invalid Rows: " + totalInvalidLines);
writer.newLine();
writer.close();
// TODO:
// 1. Build a formatted report string
// 2. Include:
@@ -176,5 +170,3 @@ public class ReportGenerator {
}
}
public void saveReport() {
}