Source Code : Sorting a Column in a JTable Component

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

Sorting a Column in a JTable Component

 

import java.util.Arrays;
import java.util.Comparator;
import java.util.Vector;

import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class Main {
  public static void main(String[] argv) throws Exception {
    DefaultTableModel model = new DefaultTableModel();
    JTable table = new JTable(model);
    table.setAutoCreateColumnsFromModel(false);

    boolean ascending = false;
    Vector data = model.getDataVector();
    Object[] colData = new Object[model.getRowCount()];

    for (int i = 0; i < colData.length; i++) {
      colData[i] = ((Vector) data.get(i)).get(0);
    }
    Arrays.sort(colData, new ColumnSorter());
    for (int i = 0; i < colData.length; i++) {
      ((Vector) data.get(i)).set(0, colData[i]);
    }
    model.fireTableStructureChanged();
  }
}

class ColumnSorter implements Comparator {
  ColumnSorter() {
  }

  public int compare(Object a, Object b) {
    if (a instanceof String && ((String) a).length() == 0) {
      a = null;
    }
    if (b instanceof String && ((String) b).length() == 0) {
      b = null;
    }
    if (a == null && b == null) {
      return 0;
    } else if (a == null) {
      return 1;
    } else if (b == null) {
      return -1;
    } else if (a instanceof Comparable) {
      return ((Comparable) a).compareTo(b);
    } else {
      return a.toString().compareTo(b.toString());
    }
  }
}

   
  

Thank with us