How do I get certain data within a text file using arrays?












-1















I have a text file (Items.txt) that has the following data: date, name, description and price and its formatted like so:



31/10/2018, Food, Hamburger, 10.00
31/10/2018, Clothes, Hoodie, 50.00
1/11/2018, Games, Controller, 150.00
1/11/2018, Food, Chips, 5.00


How would I get the total amount of the the food only? Here is the snippet I have worked so far:



public static double totalFoodExpense(byte choiceCode, byte expenseChoiceCode, doubletotalExpense) throws  IOException{
double total =0;
double amount = 0;
String expense= "";
xpenseCode = 0;
Scanner kb = new Scanner(System.in);
Scanner read = new Scanner(new File("Items.txt"));
System.out.println("Enter the expense code to determine the total amount that you have spent on");
System.out.println("Codes < Food(1), Clothes(2), Games(3), > n Please " +
"just enter a number");
xpenseCode = Byte.parseByte(kb.nextLine());
while (read.hasNextLine()){
String oneLine = read.nextLine();
String parts = oneLine.split(",");
if(xpenseCode == 1){
//Nothing yet

}
}

return total;
}


The user would enter a number( 1 for Food, 2 for clothes, and 3 for games) to determine the total amount of that certain item. So an expected output would look like this:



Enter the expense code to determine the total amount that you have spent on
Codes < Food(1), Clothes(2), Games(3), > Please just enter a number:
1 <--user input
The total expense of Food is 15.00









share|improve this question























  • You test whether the item in the line matches the entered expense code, and if so, add the cost.

    – daniu
    Nov 26 '18 at 12:11






  • 1





    What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

    – Amongalen
    Nov 26 '18 at 12:14






  • 1





    Why Byte.parseByte()?

    – Joakim Danielson
    Nov 26 '18 at 14:08
















-1















I have a text file (Items.txt) that has the following data: date, name, description and price and its formatted like so:



31/10/2018, Food, Hamburger, 10.00
31/10/2018, Clothes, Hoodie, 50.00
1/11/2018, Games, Controller, 150.00
1/11/2018, Food, Chips, 5.00


How would I get the total amount of the the food only? Here is the snippet I have worked so far:



public static double totalFoodExpense(byte choiceCode, byte expenseChoiceCode, doubletotalExpense) throws  IOException{
double total =0;
double amount = 0;
String expense= "";
xpenseCode = 0;
Scanner kb = new Scanner(System.in);
Scanner read = new Scanner(new File("Items.txt"));
System.out.println("Enter the expense code to determine the total amount that you have spent on");
System.out.println("Codes < Food(1), Clothes(2), Games(3), > n Please " +
"just enter a number");
xpenseCode = Byte.parseByte(kb.nextLine());
while (read.hasNextLine()){
String oneLine = read.nextLine();
String parts = oneLine.split(",");
if(xpenseCode == 1){
//Nothing yet

}
}

return total;
}


The user would enter a number( 1 for Food, 2 for clothes, and 3 for games) to determine the total amount of that certain item. So an expected output would look like this:



Enter the expense code to determine the total amount that you have spent on
Codes < Food(1), Clothes(2), Games(3), > Please just enter a number:
1 <--user input
The total expense of Food is 15.00









share|improve this question























  • You test whether the item in the line matches the entered expense code, and if so, add the cost.

    – daniu
    Nov 26 '18 at 12:11






  • 1





    What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

    – Amongalen
    Nov 26 '18 at 12:14






  • 1





    Why Byte.parseByte()?

    – Joakim Danielson
    Nov 26 '18 at 14:08














-1












-1








-1


0






I have a text file (Items.txt) that has the following data: date, name, description and price and its formatted like so:



31/10/2018, Food, Hamburger, 10.00
31/10/2018, Clothes, Hoodie, 50.00
1/11/2018, Games, Controller, 150.00
1/11/2018, Food, Chips, 5.00


How would I get the total amount of the the food only? Here is the snippet I have worked so far:



public static double totalFoodExpense(byte choiceCode, byte expenseChoiceCode, doubletotalExpense) throws  IOException{
double total =0;
double amount = 0;
String expense= "";
xpenseCode = 0;
Scanner kb = new Scanner(System.in);
Scanner read = new Scanner(new File("Items.txt"));
System.out.println("Enter the expense code to determine the total amount that you have spent on");
System.out.println("Codes < Food(1), Clothes(2), Games(3), > n Please " +
"just enter a number");
xpenseCode = Byte.parseByte(kb.nextLine());
while (read.hasNextLine()){
String oneLine = read.nextLine();
String parts = oneLine.split(",");
if(xpenseCode == 1){
//Nothing yet

}
}

return total;
}


The user would enter a number( 1 for Food, 2 for clothes, and 3 for games) to determine the total amount of that certain item. So an expected output would look like this:



Enter the expense code to determine the total amount that you have spent on
Codes < Food(1), Clothes(2), Games(3), > Please just enter a number:
1 <--user input
The total expense of Food is 15.00









share|improve this question














I have a text file (Items.txt) that has the following data: date, name, description and price and its formatted like so:



31/10/2018, Food, Hamburger, 10.00
31/10/2018, Clothes, Hoodie, 50.00
1/11/2018, Games, Controller, 150.00
1/11/2018, Food, Chips, 5.00


How would I get the total amount of the the food only? Here is the snippet I have worked so far:



public static double totalFoodExpense(byte choiceCode, byte expenseChoiceCode, doubletotalExpense) throws  IOException{
double total =0;
double amount = 0;
String expense= "";
xpenseCode = 0;
Scanner kb = new Scanner(System.in);
Scanner read = new Scanner(new File("Items.txt"));
System.out.println("Enter the expense code to determine the total amount that you have spent on");
System.out.println("Codes < Food(1), Clothes(2), Games(3), > n Please " +
"just enter a number");
xpenseCode = Byte.parseByte(kb.nextLine());
while (read.hasNextLine()){
String oneLine = read.nextLine();
String parts = oneLine.split(",");
if(xpenseCode == 1){
//Nothing yet

}
}

return total;
}


The user would enter a number( 1 for Food, 2 for clothes, and 3 for games) to determine the total amount of that certain item. So an expected output would look like this:



Enter the expense code to determine the total amount that you have spent on
Codes < Food(1), Clothes(2), Games(3), > Please just enter a number:
1 <--user input
The total expense of Food is 15.00






java text






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asked Nov 26 '18 at 12:06









Joey DeguzmanJoey Deguzman

406




406













  • You test whether the item in the line matches the entered expense code, and if so, add the cost.

    – daniu
    Nov 26 '18 at 12:11






  • 1





    What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

    – Amongalen
    Nov 26 '18 at 12:14






  • 1





    Why Byte.parseByte()?

    – Joakim Danielson
    Nov 26 '18 at 14:08



















  • You test whether the item in the line matches the entered expense code, and if so, add the cost.

    – daniu
    Nov 26 '18 at 12:11






  • 1





    What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

    – Amongalen
    Nov 26 '18 at 12:14






  • 1





    Why Byte.parseByte()?

    – Joakim Danielson
    Nov 26 '18 at 14:08

















You test whether the item in the line matches the entered expense code, and if so, add the cost.

– daniu
Nov 26 '18 at 12:11





You test whether the item in the line matches the entered expense code, and if so, add the cost.

– daniu
Nov 26 '18 at 12:11




1




1





What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

– Amongalen
Nov 26 '18 at 12:14





What exactly is the problem? All you have to do is to check if the second element of parts is the type you want (Food in this case), and if it is then add the price to some local variable storing total food expenses.

– Amongalen
Nov 26 '18 at 12:14




1




1





Why Byte.parseByte()?

– Joakim Danielson
Nov 26 '18 at 14:08





Why Byte.parseByte()?

– Joakim Danielson
Nov 26 '18 at 14:08












1 Answer
1






active

oldest

votes


















0














I have figured it out.



public static double totalTuitionExpense() throws  IOException{
double total =0;
double amount = 0;
String expense= "";
byte xpenseCode = 0;
Scanner kb = new Scanner(System.in);
Scanner read = new Scanner(new File("items.txt"));

System.out.print("Enter 1 for Food: ");
try{
xpenseCode = Byte.parseByte(kb.nextLine());
double sum = 0.0;
while (read.hasNextLine()){
String oneLine = read.nextLine();
String parts = oneLine.split(",");
amount = Double.parseDouble(parts[3]);
expense = parts[1];
if(xpenseCode == 1){
if (expense.compareToIgnoreCase("tuition")==0) {
sum += amount;
}
}
}
System.out.printf("The total expense of Food is %.2f%n", sum);}
catch (ArrayIndexOutOfBoundsException e){
System.out.println("Error");
}
return total;
}





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    0














    I have figured it out.



    public static double totalTuitionExpense() throws  IOException{
    double total =0;
    double amount = 0;
    String expense= "";
    byte xpenseCode = 0;
    Scanner kb = new Scanner(System.in);
    Scanner read = new Scanner(new File("items.txt"));

    System.out.print("Enter 1 for Food: ");
    try{
    xpenseCode = Byte.parseByte(kb.nextLine());
    double sum = 0.0;
    while (read.hasNextLine()){
    String oneLine = read.nextLine();
    String parts = oneLine.split(",");
    amount = Double.parseDouble(parts[3]);
    expense = parts[1];
    if(xpenseCode == 1){
    if (expense.compareToIgnoreCase("tuition")==0) {
    sum += amount;
    }
    }
    }
    System.out.printf("The total expense of Food is %.2f%n", sum);}
    catch (ArrayIndexOutOfBoundsException e){
    System.out.println("Error");
    }
    return total;
    }





    share|improve this answer




























      0














      I have figured it out.



      public static double totalTuitionExpense() throws  IOException{
      double total =0;
      double amount = 0;
      String expense= "";
      byte xpenseCode = 0;
      Scanner kb = new Scanner(System.in);
      Scanner read = new Scanner(new File("items.txt"));

      System.out.print("Enter 1 for Food: ");
      try{
      xpenseCode = Byte.parseByte(kb.nextLine());
      double sum = 0.0;
      while (read.hasNextLine()){
      String oneLine = read.nextLine();
      String parts = oneLine.split(",");
      amount = Double.parseDouble(parts[3]);
      expense = parts[1];
      if(xpenseCode == 1){
      if (expense.compareToIgnoreCase("tuition")==0) {
      sum += amount;
      }
      }
      }
      System.out.printf("The total expense of Food is %.2f%n", sum);}
      catch (ArrayIndexOutOfBoundsException e){
      System.out.println("Error");
      }
      return total;
      }





      share|improve this answer


























        0












        0








        0







        I have figured it out.



        public static double totalTuitionExpense() throws  IOException{
        double total =0;
        double amount = 0;
        String expense= "";
        byte xpenseCode = 0;
        Scanner kb = new Scanner(System.in);
        Scanner read = new Scanner(new File("items.txt"));

        System.out.print("Enter 1 for Food: ");
        try{
        xpenseCode = Byte.parseByte(kb.nextLine());
        double sum = 0.0;
        while (read.hasNextLine()){
        String oneLine = read.nextLine();
        String parts = oneLine.split(",");
        amount = Double.parseDouble(parts[3]);
        expense = parts[1];
        if(xpenseCode == 1){
        if (expense.compareToIgnoreCase("tuition")==0) {
        sum += amount;
        }
        }
        }
        System.out.printf("The total expense of Food is %.2f%n", sum);}
        catch (ArrayIndexOutOfBoundsException e){
        System.out.println("Error");
        }
        return total;
        }





        share|improve this answer













        I have figured it out.



        public static double totalTuitionExpense() throws  IOException{
        double total =0;
        double amount = 0;
        String expense= "";
        byte xpenseCode = 0;
        Scanner kb = new Scanner(System.in);
        Scanner read = new Scanner(new File("items.txt"));

        System.out.print("Enter 1 for Food: ");
        try{
        xpenseCode = Byte.parseByte(kb.nextLine());
        double sum = 0.0;
        while (read.hasNextLine()){
        String oneLine = read.nextLine();
        String parts = oneLine.split(",");
        amount = Double.parseDouble(parts[3]);
        expense = parts[1];
        if(xpenseCode == 1){
        if (expense.compareToIgnoreCase("tuition")==0) {
        sum += amount;
        }
        }
        }
        System.out.printf("The total expense of Food is %.2f%n", sum);}
        catch (ArrayIndexOutOfBoundsException e){
        System.out.println("Error");
        }
        return total;
        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 27 '18 at 11:29









        Joey DeguzmanJoey Deguzman

        406




        406
































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