How to copy data from txt file to array

Question

I am doing a project that requires me to copy all the information from txt file into array. The content of the txt is listed below. What i want here is that i want to grab all the names of goods and description into its arrays respectively.

GoodTitle        Description            
    Gold       The shiny stuff
    Wheat   What wheaties are made of
    Wood    To make more ships
    Spices  To disguise the taste of rotten food
    Tobacco Smoko time
    Coal    To make them steam ships go
    Coffee  Wakes you up
    Tea Calms you down

What I have done so far:

public void openFile()
    {
        ArrayList <String> ShippingTokens = new ArrayList<String>();
        try{
            FileInputStream fstream = new FileInputStream("D://Shipping.txt");
            // Use DataInputStream to read binary NOT text.
                    BufferedReader br = new BufferedReader (new InputStreamReader (fstream));
            String strline;
            while ((strline = br.readLine()) != null){ 
                strline = strline.trim();

            if ((strline.length()!=0)) {
                String[] Shippings = strline.split("//s+");
                ShippingTokens.add(Shippings[TOKEN_COLUMN]);
            }

        }

        for (String s : ShippingTokens) {
            System.out.println(s);
        }

        in.close();
        } catch (Exception e){
            System.err.println("Error");
        }

    }

What is your doubt in this ??

Hussain Shabbir
– Hussain Shabbir

2013-10-24 09:06:17 +00:00
Commented Oct 24, 2013 at 9:06 — Hussain Shabbir
– Hussain Shabbir, Commented Oct 24, 2013 at 9:06

Petr Mensik · Accepted Answer · 2013-10-24 09:18:41Z

1

First of all, Java SE 7 really simplified working with files, so I suggest you using it.

try(BufferedReader reader = Files.newBufferedReader(Paths.get("D://Shipping.txt"), StandardCharsets.UTF_8)) { 
    List<String> lines = Files.readAllLines(reader, StandardCharsets.UTF_8);
    for(String line : lines) {
         String[] shipping = line.split("//s+");
         //now do whatever you want with the values
    }
}

edited Oct 24, 2013 at 9:18

answered Oct 24, 2013 at 9:10

Petr Mensik

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Comments

Prabhakaran Ramaswamy · Accepted Answer · 2013-10-24 09:13:03Z

0

Please ensure you defined TOKEN_COLUMN in your class.

 ShippingTokens.add(Shippings[TOKEN_COLUMN]);

if your TOKEN_COLUMN value is 0 then your output will be as below.

GoodTitle   
Gold
Wheat
Wood
Spices
Tobacco
Coal
Coffee
Tea

answered Oct 24, 2013 at 9:13

Prabhakaran Ramaswamy

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Comments

oalsing · Accepted Answer · 2013-10-24 09:16:37Z

One possible solution is to first read the first word of the string, and store that in the array. Then you would probably want to store the rest of the line, which could be done in various way. One possible solution is to read the whole line, store the first word as the GoodTitle, remove the first word and store the rest of the string as the description, I am not quite sure how BufferedReaders work in Java.

You might want to consider using a Scanner instead. http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html

Which comes with methods such as next() and nextLine(), which probably would ease your solution.

Are you sure that you want to store this in an array? It would probably make more sense to store the information in a HashMap with the GoodTitle as the key.

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