Java

CSV Append a Column with Values

See more CSV Examples

Append an additional column and initialize with a value. Chilkat2 Java

import com.chilkatsoft.chilkat2.Csv;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // 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;
        StringBuilder sb = new StringBuilder();
        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);

        Csv csv = new Csv();

        csv.setHasColumnNames(true);
        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.getNumColumns();
        int numRows = csv.getNumRows();

        // 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());
    }
}