Java

CSV Append a Column with Values

See more CSV Examples

Append an additional column and initialize with a value. Java

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[])
  {
    boolean success = false;

    // First initialize the CSV with content.  

    // permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
    // lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
    // mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
    // flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
    // infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
    // gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed

    boolean bCrlf = true;
    CkStringBuilder sb = new CkStringBuilder();
    sb.AppendLine("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round",bCrlf);
    sb.AppendLine("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b",bCrlf);
    sb.AppendLine("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed",bCrlf);
    sb.AppendLine("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a",bCrlf);
    sb.AppendLine("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a",bCrlf);
    sb.AppendLine("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed",bCrlf);

    CkCsv csv = new CkCsv();

    csv.put_HasColumnNames(true);
    success = csv.LoadFromString(sb.getAsString());

    // Show the initial CSV:
    System.out.println(csv.saveToString());
    System.out.println("----");

    // Now let's add a new rightmost column.
    int numColumns = csv.get_NumColumns();
    int numRows = csv.get_NumRows();

    // Set the column name.
    int columnIdx = numColumns;
    csv.SetColumnName(columnIdx,"new_column");

    // Add the column to each row.
    int i = 0;
    while (i < numRows) {
        csv.SetCell(i,columnIdx,"newData");
        i = i+1;
        }

    // Show the updated CSV:
    System.out.println(csv.saveToString());
  }
}