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package exo_17;
import javax.swing.*;
import java.io.*;
public class exo_17 {
public static void main(String[] args)
{
try
{
FileWriter customersFile=new FileWriter("c:\\customers.txt");
customersFile.close();
FileWriter billsFile=new FileWriter("c:\\bills.txt");
billsFile.close();
}catch(Exception e){System.out.println(e.getMessage());}
menu();
}
public static void menu()
{
byte choixMenu;
String name, surname,billDate;
float billSum;
choixMenu=Byte.parseByte(JOptionPane.showInputDialog(null,"1-Ajouter un client"+"\r\n"+"2-Ajouter une facture"+"\r\n"+"3-Bilan Factures"+"\r\n"+"4-Quitter"+"\r\n"+"Saisissez votre choix:"));
while(choixMenu!=4)
if(choixMenu==1)
{
name=JOptionPane.showInputDialog("Saisissez le nom du client:");
surname=JOptionPane.showInputDialog("Saisissez le prénom du client:");
addCustomer(name,surname);
choixMenu=Byte.parseByte(JOptionPane.showInputDialog(null,"1-Ajouter un client"+"\r\n"+"2-Ajouter une facture"+"\r\n"+"3-Bilan Factures"+"\r\n"+"4-Quitter"+"\r\n"+"Saisissez votre choix:"));
}
else if(choixMenu==2)
{
name=JOptionPane.showInputDialog("Saisissez le nom du client à facturer:");
surname=JOptionPane.showInputDialog("Saisissez le prénom du client à facturer:");
billDate=JOptionPane.showInputDialog("Saisissez la date de la facture:");
billSum=Integer.parseInt(JOptionPane.showInputDialog("Saisissez le montant de la facture:"));
addBill(getCustomerNumber(name,surname),billDate,billSum);
choixMenu=Byte.parseByte(JOptionPane.showInputDialog(null,"1-Ajouter un client"+"\r\n"+"2-Ajouter une facture"+"\r\n"+"3-Bilan Factures"+"\r\n"+"4-Quitter"+"\r\n"+"Saisissez votre choix:"));
}
else if(choixMenu==3)
{
showAllCustomersBills();
choixMenu=Byte.parseByte(JOptionPane.showInputDialog(null,"1-Ajouter un client"+"\r\n"+"2-Ajouter une facture"+"\r\n"+"3-Bilan Factures"+"\r\n"+"4-Quitter"+"\r\n"+"Saisissez votre choix:"));
}
else
{
System.out.println("Au revoir!");
System.exit(0);
}
}
public static int getCustomerNumber(String name, String surname)
{
int customerNumberRead;
String nameRead,surnameRead;
try
{
FileReader customersFile=new FileReader("c\\customers.txt");
BufferedReader br=new BufferedReader(customersFile);
while((nameRead=br.readLine())!=null)
{
surnameRead=br.readLine();
customerNumberRead=Integer.parseInt(br.readLine());
if(nameRead.compareTo(name)==0 && surnameRead.compareTo(surname)==0)
return customerNumberRead;
}
customersFile.close();
}catch(Exception e) {System.out.println(e.getMessage());}
return-1 ;
}
public static int newCustomerNumber()
{
int maxCustomerNumber= 0, customerNumberRead;
String nameRead,surnameRead;
try
{
FileReader customersFile=new FileReader("c\\customers.txt");
BufferedReader br=new BufferedReader(customersFile);
while((nameRead=br.readLine())!=null)
{
surnameRead=br.readLine();
customerNumberRead=Integer.parseInt(br.readLine());
if(customerNumberRead>maxCustomerNumber)
{
maxCustomerNumber=customerNumberRead;
}
}
customersFile.close();
return maxCustomerNumber+1;
}catch(Exception e) {System.out.println(e.getMessage());}
}
public static int newBillNumber()
{
int maxBillNumber= 0, billNumberRead, billCustomerNumberRead;
float billSumRead;
String billDateRead;
try
{
FileReader billsFile=new FileReader("c\\bills.txt");
BufferedReader br=new BufferedReader(billsFile);
while((billNumberRead=Integer.parseInt(br.readLine()))!=null)
{
billSumRead=Float.parseFloat(br.readLine());
billDateRead=br.readLine();
billCustomerNumberRead=Integer.parseInt(br.readLine());
if(billNumberRead>maxBillNumber)
{
maxBillNumber=billNumberRead;
}
}
return maxBillNumber+1;
billsFile.close();
}catch(Exception e) {System.out.println(e.getMessage());}
}
public static int addCustomer(String name,String surname)
{
int customerNumberRead, customerNumber=newCustomerNumber();
String nameRead,surnameRead;
boolean customerExist=false;
try
{
FileReader customersFile=new FileReader("c:\\customers.txt");
BufferedReader br=new BufferedReader(customersFile);
while((nameRead=br.readLine())!=null)
{
surnameRead=br.readLine();
customerNumberRead=Integer.parseInt(br.readLine());
if(nameRead.compareTo(name)==0 && surnameRead.compareTo(surname)==0)
{
JOptionPane.showMessageDialog(null, "Ce client existe déjà.");
customerExist=true;
return customerNumberRead;
}
}
customersFile.close();
}catch(Exception e) {System.out.println(e.getMessage());}
if(customerExist=false)
{
try
{
FileWriter customersFile=new FileWriter("c:\\customers.txt",true);
customersFile.write(name+"\r\n");
customersFile.write(surname+"\r\n");
customersFile.write(customerNumber+"\r\n");
customersFile.close();
return customerNumber;
}catch(Exception e) {System.out.println(e.getMessage());}
}
}
public static void addBill(int billCustomerNumber, String billDate, float billSum)
{
int billNumber=newBillNumber();
try
{
FileWriter billsFile=new FileWriter("c:\\customers.txt",true);
billsFile.write(billNumber+"\r\n");
billsFile.write(billSum+"\r\n");
billsFile.write(billDate+"\r\n");
billsFile.write(billCustomerNumber+"\r\n");
billsFile.close();
}catch(Exception e){System.out.println(e.getMessage());}
}
public static void addBillData(String name, String surname,String billDate,float billSum)
{
}
public static void showAllCustomersBills()
{
int billNumber, customerNumber,billCustomerNumber, billNumberRead, customerNumberRead, billCustomerNumberRead;
String name, surname, billDate, nameRead,surnameRead, billDateRead;
float billSum, totalBillsSum=0, billSumRead;
try
{
FileReader customersFile=new FileReader("c:\\customers.txt");
BufferedReader br=new BufferedReader(customersFile);
while((nameRead=br.readLine())!=null)
{
surnameRead=br.readLine();
customerNumberRead=Integer.parseInt(br.readLine());
try
{
FileReader billsFile=new FileReader("c:\\bills.txt");
BufferedReader br2=new BufferedReader(billsFile);
while((billNumberRead=Integer.parseInt(br2.readLine()))!=null)
{
billSumRead=Float.parseFloat(br.readLine());
billDateRead=br.readLine();
billCustomerNumberRead=Integer.parseInt(br.readLine());
if(billCustomerNumberRead==customerNumberRead)
{
totalBillsSum+=billSumRead;
}
}
billsFile.close();
System.out.println("surnameRead"+" "+"nameRead: "+totalBillsSum+"$");
totalBillsSum=0;
}catch(Exception e){System.out.println(e.getMessage());}
}
customersFile.close();
}catch(Exception e){System.out.println(e.getMessage());}
}
} |
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