Using BufferedReader to read an array?

Question

I'm just beginning to learn Java, and I'm unsure of how to use BufferedReader to read an array in the assignment I'm working on. getSalesData is its own method. I understand that I need to use BufferedReader to ask the user to input a number (which are Strings here) and then store it in data [0] and [1], but I'm unsure of how to proceed and fix the errors. Any tips would be very much appreciated!

   String [] getSalesData (){
        String [] data = new String [2];
        String [] ticketsSold = "";
        String [] ticketPrice = "";

        BufferedReader br = null;
        String buffer = new String ();

        try {
            br = new BufferedReader (new InputStreamReader(System.in));
            System.out.print ("Enter your agent ID:");
            buffer = br.readLine ();
            ticketsSold = buffer;

            br = new BufferedReader (new InputStreamReader(System.in));
            System.out.print ("Enter your agent ID:");
            buffer = br.readLine ();
            ticketPrice = buffer;


        } catch (Exception e) {
            System.out.println ("Invalid entry");
        }

        return data;

I'm having problems with ticketsSold and ticketPrice. I keep getting told there's a type mismatch and the program can't convert from String to String []. I also suspect some of my array syntax may not be correct. — learningjava
– learningjava, Commented Jul 14, 2015 at 22:14
You are doing br = new BufferedReader (new InputStreamReader(System.in)); twice -- you don't need to. Once you have br you just do br.readLine() each time you need it. And get in the habit of closing your streams and readers when you're done ... br.close() ... (also google for try-with-resources) — Stephen P
– Stephen P, Commented Jul 15, 2015 at 0:02

GregH · Accepted Answer · 2015-07-14 22:15:04Z

3

br.readLine() will return a String and you are setting ticketsSold = buffer. So let's examine a little closer: buffer is a string and ticketsSold is an array of strings. this should produce an error for you (if you can post the error stack trace that would be very helpful). I'm not sure if you actually want ticketsSold and ticketPrice to be arrays of Strings as here it looks as if they should just be strings.

So if you want them to really be arrays of strings, use:

ticketsSold[0] = buffer;

and

ticketPrice[0] = buffer;

or you can change the declartion of ticketPrice and ticketsSold to be strings:

String ticketsSold = "";
String ticketPrice = "";

hope this helps and welcome to stack overflow!

answered Jul 14, 2015 at 22:15

GregH

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Anuj Garg · Accepted Answer · 2023-12-24 17:20:24Z

1

I don't know much about it as I am also a beginner but i think this should work properly

BufferedReader br = new BufferedReader (new InputStreamReader(System.in));
System.out.print ("Enter your details:");//(suppose name and email)
buffer = br.readLine ();
String[] strArray = buffer.split(' ');
//then this strArray contains all the input separately
String name = strArray[0];
String email= strArray[1];

answered Dec 24, 2023 at 17:20

Anuj Garg

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1 Comment

Community Over a year ago

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.

havogt · Accepted Answer · 2015-07-14 22:30:58Z

0

peggy's answer already explained why you get the errors and how to resolve them. But actually you don't need ticketsSold and ticketPrice at all. You said you want to put the input in data[0] and data[1]. Therefore, completely remove ticketsSold and ticketPrice and write

data[0] = buffer;

and

data[1] = buffer;

in the appropriate locations. Then your return value will be correct.

answered Jul 14, 2015 at 22:30

havogt

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