CSV Column Names

Demonstrates how to access CSV column names.

The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.

 Chilkat Java Library Downloads for Windows, Linux, and MAC OS X

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    //  This example program loads a file (sample.csv)
    //  that contains this content:
    // 
    //  year,color,country,food
    //  2001,red,France,cheese
    //  2005,blue,"United States",hamburger
    //  2008,green,Italy,pasta
    //  1998,orange,Japan,sushi
    // 
    //  The first row contains the column names.
    //  This file is available at:
    //  http://www.chilkatsoft.com/testData/sample.csv

    CkCsv csv = new CkCsv();

    //  Prior to loading the CSV file, indicate that the 1st row
    //  should be treated as column names:
    csv.put_HasColumnNames(true);

    //  Load the CSV records from the file:
    boolean success;
    success = csv.LoadFile("sample.csv");
    if (success != true) {
        System.out.println(csv.lastErrorText());
        return;
    }

    //  Display the column names:
    int i;
    String colName;
    int idx;
    for (i = 0; i <= csv.get_NumColumns() - 1; i++) {
        colName = csv.getColumnName(i);
        System.out.println(i + ": " + colName);

        //  The following line demonstrates to to get the column
        //  index given a column name:
        idx = csv.GetIndex(colName);
        System.out.println(colName + " is at column index "
             + idx);
    }

  }
}