JAVA Read text file and print out quoted-string per line

Question

I'm supposed to read in a text file and print out one quoted string per line. The size of the quoted String has to be the same too.

This is the read file:

"check on","SKY yelow, blue ocean","","1598"
"6946","Jaming","Mountain range","GOOO, five, three!","912.3"

And this is the expected output:

check on
SKY yelow, blue ocean
1598
6946
jaming
Mountain range
GOOO, five, three!
912.3

I know how to read the file, but how would I get the output as shown above?

Thanks in advance!

you can use Java String split. Look here: http://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java Also, you should try more before asking here... — m.aibin, Nov 24 '15 at 06:28

score 2 · Answer 1 · answered Nov 24 '15 at 09:07

Here the code for reading data from txt file.That will print as your wish and i mentioned the data which contain that txt file in below

"Viru","Sachin","Dravid","Ganguly","Rohit"

import java.io.BufferedReader;
    import java.io.FileReader;
    import java.io.IOException;



    public class logic {

        public static void main(String[] args)
        {
            BufferedReader br = null;

            try {

                String sCurrentLine;
                br = new BufferedReader(new FileReader("C:/Users/rajmohan.ravi/Desktop/test.txt"));

                while ((sCurrentLine = br.readLine()) != null) {
                    reArrange(sCurrentLine.split(","));
                }

            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try {
                    if (br != null)br.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        }
        public static void reArrange(String[] dataContent)
        {
            for(String data : dataContent)
            {
                System.out.print(data);
                System.out.print("\r\n");
            }
        }


    }

score 0 · Answer 2 · answered Nov 24 '15 at 06:32

0

Use Pattern and Matcher classes.

List<String> lst = new ArrayList();
Matcher m = Pattern.compile("\"([^\"]+)\"").matcher(string);
while(m.find())
{
lst.add(m.group(1));
}
System.out.println(lst);

answered Nov 24 '15 at 06:32

Avinash Raj

172,303
28
230
274

score 0 · Answer 3 · answered Nov 24 '15 at 06:36

You can do something like below

Scanner scanner = new Scanner(new File("path"));
        String input = scanner.next();
        Pattern p = Pattern.compile("\"([^\"]*)\"");
        Matcher m = p.matcher(input);
        while (m.find()) {
            System.out.println(m.group(1));
        }

score 0 · Answer 4 · answered Nov 24 '15 at 06:36

0

You can take help from this code :

String a = "\"abc\",\"xyzqr\",\"pqrst\",\"\"";   // Any string (of your specified type)
String an[] = a.split(",");
for (String b : an) {
      System.out.println(b.substring(1, b.length() - 1));
}

Read data line by line and use above code to print expected result.

answered Nov 24 '15 at 06:36

Ashish Ani

324
1
7

-- That wouldn't work because some of the quoted strings in my read file contains ",". If we split the "," it will split those words within the quoted string to separate. – HongHua Nov 24 '15 at 19:59

JAVA Read text file and print out quoted-string per line

4 Answers4