University-Management-System/SelectionMethod.java at master · thatdevopsengineer/University-Management-System · GitHub

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importjava.util.*;
importjava.io.*;
publicclassSelectionMethod{
staticScannerinput = newScanner(System.in);
staticintoption;
staticjava.util.Datedate=newjava.util.Date();
staticStringname;
publicstaticvoidchooseMethod(StringregNumber) throwsException{
intamount = 2000;
FoodSelectionfoodSelectionObj = newFoodSelection();//Create an object to acces class FoodSelection
DrinkSelectiondrinkobj = newDrinkSelection();//Create an object to acces class DrinkSelection
while(true){
System.out.println("1.Food\n2.Drinks\n3.bill Generate\n4. Previous Menu.\n5.Exit\n");
try {
System.out.print("Enter Your Choice: ");
option = input.nextInt();
System.out.println();
if(option == 1){
foodSelectionObj.food(regNumber);//Method from class FoodSelection is called here .
System.out.println("********************************************");
// break;
 }
elseif(option == 2){
drinkobj.myDrink(regNumber);//Method from class DrinkSelection is called here .
System.out.println("********************************************");
// break;
 }
elseif(option == 3){
Filefile = newFile("students_data/"+ regNumber +".txt");
try{
Scannersc = newScanner(file);
String[] line = sc.nextLine().split(":");
name = line[1];
 }
catch(Exceptione){
System.out.print("Error occured!");
 }

MyFastFoodfastfoodobject = newMyFastFood();//Create an object to call methods from class MyFastFood
intnum = fastfoodobject.FastfoodBill();//method FastfoodBill is caled and its value is stored in num variable

MyDesiFooddesifoodobject = newMyDesiFood();//Create an object to call methods from class MyDesiFood
intnum2 = desifoodobject.DesifoodBill();//method DesifoodBill is caled and its value is stored in num2 variable

MySoftDrinkssoftDrinkobject = newMySoftDrinks();//Create an object to call methods from class MySoftDrinks
intnum3 = softDrinkobject.SoftDrinkbill();//method SoftDrinkbill is caled and its value is stored in num3 variable

MyCoffeecoffeeobject = newMyCoffee();//Create an object to call methods from class MyCoffee
intnum4 =coffeeobject.CoffeeBill();//method CoffeeBill is caled and its value is stored in num4 variable

MyJuiceOrPlantDrinkjuiceOrPlantDrinkobject = newMyJuiceOrPlantDrink();//Create an object to call methods from class MyJuiceOrPlantDrink
intnum5 = juiceOrPlantDrinkobject.JuiceORPlantbill();//method JuiceORPlantbill is caled and its value is stored in num5 variable
intTotalAmount= num+num2+num3+num4+num5;
if(amount>=TotalAmount&& TotalAmount !=0){// check the amount in student account is enough to pay Total amount.
System.out.println("\n\n\n");
System.out.println("\t\t\t-----------------------------------");
System.out.println("\t\t\tDate: "+date);
System.out.println("\t\t\tName: "+name);
System.out.println("\t\t\tStudent ID: "+regNumber);
System.out.println("\t\t\t---------Thanks For Coming---------");
System.out.println("\t\t\t-----------Your Bill Is------------\n");
Filefile2 = newFile("cafe/CafeBills/BillFastfood.txt");
ScannermyReader = newScanner(file2);
intcount = 0;//to create size of array
while(myReader.hasNextLine()) {
myReader.nextLine();
count+=1;
 }
Scannerreader = newScanner(file2);
String[] array = newString[count];
intindex = 0;
//Read the data in file as well as input the data in the String Array.
while (reader.hasNextLine()){
array[index] = reader.nextLine();//read data from file.
index++;
 }
System.out.println("\t\t\tItems Quantity Prices\n");
for (inti = 0 ;i<array.length ;i++ ) {
System.out.print("\t\t\t"+array[i]+"\n");
 }
System.out.printf("\t\t\tTotal Bill %d \n",(num+num2+num3+num4+num5));//Total Bill is formed here.
System.out.println("\t\t\t---------------------------------------");
System.out.println("\t\t\t---------------------------------------");
System.out.println("\t\t\t---------------------------------------");
System.out.println();
try{
Filefile1 = newFile("cafe/CafeBills/FinalBills/"+ regNumber +".txt");
booleanvalue = file1.createNewFile();
FileWriterbillObj = newFileWriter(file1,true);
billObj.write("Date: "+date+"\n");
billObj.write("-----------------------------------\n");
billObj.write("Name : "+ name +"\n");
billObj.write("Student ID : "+ regNumber +"\n");
billObj.write("-----------------------------------\n");
billObj.write("---------Thanks For Coming---------\n");
billObj.write("-----------Your Bill Is------------\n");
billObj.write("\t\t\tItems Quantity Prices\n");
for (inti = 0 ;i<array.length ;i++ ) {
billObj.write(""+array[i]+"\n");//Write the data
 }
billObj.write("Total Bill "+TotalAmount+"\n");
billObj.write("-----------------------------------\n");
billObj.write("-----------------------------------\n\n\n");
billObj.close();

 }
catch(Exceptione){
System.out.println("invalid");
 }
 }
else{
if (TotalAmount==0) {
System.out.println("Please Buy Something First");
// break;
// return amount;
 }

elseif(TotalAmount!=0){
System.out.println("Sir, You don't have enough Account Balance");
 }
 }
 }
elseif(option == 4){
Filefile3 = newFile("cafe/CafeBills/BillFastfood.txt");

PrintWriterwriter = newPrintWriter(file3);
writer.print("");
writer.close();
CafeManagement.manage(regNumber);
 }

elseif(option ==5){//If user does not want to buy anything
System.out.println("********************************************");
Filefile2 = newFile("cafe/CafeBills/BillFastfood.txt");

PrintWriterwriter = newPrintWriter(file2);
writer.print("");
writer.close();
System.exit(0);

 }
else{
System.out.println("Please select correct option ");
 }
 } catch(Exceptione){
System.out.println("Invalid Inputs");
input.nextLine();
continue;
 }
 }
	}
}