🚀 go-pugleaf

Kobus du Toit wrote:

> What is CSV file[?]

CSV stands for "comma-separated values".  It is a standard 
format for exporting a database table to a text file.  An alternative
format is "tab-delimited" text, which as you might guess, uses the 
tab character to separate column values.
  
> File create you use the File class.

Yes, perhaps, but this really isn't very helpful.  

> HooLee originally wrote:

> > How to make CSV file in Java? (file create?)

It depends upon what you are starting with.  If you have
some values which are in a row-and-column order, you 
simply write those values to a file, separating the column
values with commas.  For instance, if you have a grid control
which is not connected to a dataset, you would get the 
items from the grid control and write them out to a file.
The strategy would be to open a file and iterate through each
row, creating a string from the column data, separating the
values with a comma and ending with an operating system-specific
line separator.

  // create the FileWriter
  FileWriter writer = new FileWriter(filename);
  // get the strings from the grid control
  String [][] items = gridControl.getItems();
  // get the system-specific line terminator character(s)
  String lineSeparator = System.getProperty("line.separator");
  for ( int row = 0; row < items.length; row++ ) {
    String line = "";
    for ( int col = 0; col < items[0].length; col++ )
       line = line + ",";
    // remove the comma at the end of the "line"
    line = line.substring(0, line.length() -1) + lineSeparator;
    writer.write(line);
  }
  writer.close();


If you have a dataset, you can create an instance of 
borland.jbcl.dataset.TextDataFile, and set its filename
property.  In order to have the TextDataFile write a CSV file, 
you set the delimiter to a comma:

  TextDataFile tdf = new TextDataFile();
   tdf.setFilename(theFilename);
   tdf.setDelimiter(",");
   tdf.save(myDataset);


Paul Furbacher (TeamB)