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How to keep zero begin string when export data using opencsv library

I using opencsv library in java and export csv. But i have problem. When i used string begin zero look like : 0123456 , when i export it remove 0 and my csv look like : 123456. Zero is missing. I using way :
"\"\t"+"0123456"+ "\""; but when csv export it look like : "0123456" . I don't want it. I want 0123456. I don't want edit from excel because some end user don't know how to edit. How to export csv using open csv and keep 0 begin string. Please help

I think it is not really the problem when generating CSV but the way excel treats the data when opened via explorer.
Tried this code, and viewed the CSV in a text editor ( not excel ), notice that it shows up correctly, though when opened in excel, leading 0s are lost !
CSVWriter writer = new CSVWriter(new FileWriter("yourfile.csv"));
// feed in your array (or convert your data to an array)
String[] entries = "0123131#21212#021213".split("#");
List<String[]> a = new ArrayList<>();
a.add(entries);
//don't apply quotes
writer.writeAll(a,false);
writer.close();
If you are really sure that you want to see the leading 0s for numeric values when excel is opened by user, then each cell entry be in format ="dataHere" format; see code below:
CSVWriter writer = new CSVWriter(new FileWriter("yourfile.csv"));
// feed in your array (or convert your data to an array)
String[] entries = "=\"0123131\"#=\"21212\"#=\"021213\"".split("#");
List<String[]> a = new ArrayList<>();
a.add(entries);
writer.writeAll(a);
writer.close();
This is how now excel shows when opening excel from windows explorer ( double clicking ):
But now, if we see the CSV in a text editor, with the modified data to "suit" excel viewing, it shows as :
Also see link :
format-number-as-text-in-csv-when-open-in-both-excel-and-notepad

have you tried to use String like this "'"+"0123456". ' char will mark number as text when parse into excel

For me OpenCsv works correctly ( vers. 5.6 ).
for example my csv file has a row as the following extract:
"999739059";;;"abcdefgh";"001024";
and opencsv reads the field "1024" as 001024 corretly. Of course I have mapped the field in a string, not in a Double.
But, if you still have problems, you can grab a simple yet powerful parser that fully adheres with RFC 4180 standard:
mykong.com
Mykong shows you some examples using opencsv directly and, in the end, he writes a simple parser to use if you don't want to import OpenCSV , and the parser works very well , and you can use it if you still have any problems.
So you have an easy-to-understand source code of a simple parser that you can modify as you want if you still have any problem or if you want to customize it for your needs.

CSVPrinter with break line characters

I'm using org.apache.commons.csv.CSVPrinter (Java 8) in order to produce a CSV text file starting from a DB RecordSet. I have a description field in my DB table on where the user can insert whatever he want, such as a new line!
As I import the CSV on Excel or Google Spreadsheet each line with a new line character in the description corrupts the CSV structure, obviously.
Should I replace/remove these characters manually or is there a way to configure CSVPrinter in order to remove it automatically?
Thank you all in advance.
F
Edit: here a code snippet:
CSVFormat csvFormat = CSVFormat.DEFAULT.withRecordSeparator("\n").withQuoteMode(QuoteMode.ALL).withQuote('"');
CSVPrinter csvPrinter = new CSVPrinter(csvContent, csvFormat);
// prepare a list of string gathered from the DB. I explicitly use a String array because I need to perform some text editing to DB content before writing it in the CSV
List fasciaOrariaRecord = new ArrayList();
fasciaOrariaRecord.add(...);
fasciaOrariaRecord.add(...);
// ...
csvPrinter.printRecord(csvHeader);
// more rows...
csvPrinter.close();

Any value with line endings should be escaped with quotes. If your CSV library is not doing this for you automatically I'd recommend using univocity-parsers. In your particular case, there is a pre-built routine you can use to dump database contents into CSV.
Try this:
ResultSet resultSet = statement.executeQuery("SELECT * FROM table");
//Get a CSV writer settings object pre-configured for Excel
CsvWriterSettings writerSettings = Csv.writeExcel();
writerSettings.setHeaderWritingEnabled(true); //writes the column names to the output file
CsvRoutines routines = new CsvRoutines(writerSettings);
//use an encoding Excel likes
routines.write(resultSet, new File("/path/to/output.csv"), "windows-1252");
Hope this helps.
Disclaimer: I'm the author of this library. It's open source and free (Apache 2.0 license)

How to read csv file of excel using apache csv

I have a CSV file(excel) in which each data is available in cell like excel. I'm using Apache CSV to parse excel type csv. While parsing the data my each character is getting separated by null character in between. This CSV file I'm getting from different source but when I'm copying the same excel csv file data and making a excel csv file manually, my below code able to get the desired output.
My CSV Excel:
My Code:
InputStream is =null;
Reader in =null;
is = new ByteArrayInputStream(excelCSVFile);
in = new InputStreamReader(is);
CSVParser parser = new CSVParser(in, CSVFormat.EXCEL.withHeader("EMPLOYEE_ID","NAME","DOJ",
"MOBILE_NO").withSkipHeaderRecord(true).withTrim(true));
List<CSVRecord> records = parser.getRecords();
for (CSVRecord record : records) {
System.out.println("Employee Id::"+record.get("EMPLOYEE_ID"));
System.out.println("Employee Name::"+record.get("NAME"));
}
I'm getting output here by above code is:
When I checked the ASCII value for blank character I got '0' as value means Null character.
I was looking to get output like this:

is = new FileInputStream(excelCSVFile);
instead of
is = new ByteArrayInputStream(excelCSVFile);
Note also that the fields are case-sensitive.

Accent in JTable displayed in Eclipse but not in a .jar

I am displaying a csv file (with a UTF-8 encoding and french accents) in a JTable. To read the file I use the following lines (s_path is a String which corresponds to the path of the csv file):
reader = new CSVReader(new FileReader(s_path),',');
do{
String currentLine = reader.readNext();
...
}
To display the content of a cell in the JTable I use html (i.e., "html" and "body" markup and eventually "br" markups if a cell is displayed on several lines)
It works fine when I execute the project in Eclipse. However, if I export a .jar file from my project (and use the exact same csv files), the accent are not displayed (e.g., see the following image).
I really don't have any idea how to solve this problem. Do you have any suggestions?
Don't hesitate to ask for more details if necessary.
Thanks in advance.

If the file really is encoded using UTF8, you should use
reader = new CSVReader(new InputStreamReader(new FileInputStream(s_path), StandardCharsets.UTF_8), ',');
to read it. The way you're doing it, it uses the default charset of your platform, which is probably not UTF8.

Text search through multiple file encoding

I am trying to find a specific word from list of files and these files can be ASCII, Unicode or some other format.
So far I can only work on ASCII files . Is there any way to do same operation with other file encoding formats.
Scanner s = null;
try {
s = new Scanner(new BufferedReader(new FileReader("C:\\New Microsoft Word Document.docx")));
while (s.hasNext()) {
// final String lineFromFile = s.nextLine();
// if(lineFromFile.contains("DE")){
System.out.println(s.next());
// break;
// }
}
} finally {
if (s != null) {
s.close();
}
}
I get the following results
Q[µM¡°‰”Ø÷Þ3{:½¹®’)xTÖä¬?µXFÚB™QÎÞ‡Ïé=K0SˆÊÈÙ?õº×W?áÂ&¤6˜³qî?s”cÐ3ëÀÐJi½?^ýˆ;!¿Äøm«uÇ¥5LHCô`ÝΔbR…¤?§Ï+gF,y\í‹Q9S:êãw~Pá¡Â=‰p®RRª?OM±Ç•®™2R.÷àX9¼!ð#
qe—i;`­{¥fzU#2>¼Mä|f}Á
+'šªÎNÛ

docx is not a text format with a different encoding, it's a completely different, non-text file format. Basically, it'a zip archive of various files and folders (with the main data in some xml files). You can't just read it as a text file, you need to use a library such as Apache POI, or some kind of file converter to obtain the text from it.

This has nothing to do with a different text encoding.
docx is a special format from microsoft which holds various information about a document (packed as a zip archive).
You could read the file using java ZipFile and get the entry: word/document.xml
document.xml contains the text of the word document. You can read then through this file and output specific lines.
Pseudocode:
ZipFile file = new ZipFile("doc.docx");
InputStream input = file.getInputStream(file.getEntry("word/document.xml"));
input contains now the text information.
EDIT: document.xml contains the text of the document, but there are many xml tags which you would have to filter out