Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Collections;
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);

        Vector data = model.getDataVector();
        Collections.sort(data, new ColumnSorter(0));
        model.fireTableStructureChanged();
    }
}

class ColumnSorter implements Comparator {
    int colIndex;

    ColumnSorter(int colIndex) {
        this.colIndex = colIndex;
    }

    public int compare(Object a, Object b) {
        Vector v1 = (Vector) a;
        Vector v2 = (Vector) b;
        Object o1 = v1.get(colIndex);
        Object o2 = v2.get(colIndex);

        if (o1 instanceof String && ((String) o1).length() == 0) {
            o1 = null;
        }
        if (o2 instanceof String && ((String) o2).length() == 0) {
            o2 = null;
        }

        if (o1 == null && o2 == null) {
            return 0;
        } else if (o1 == null) {
            return 1;
        } else if (o2 == null) {
            return -1;
        } else if (o1 instanceof Comparable) {

            return ((Comparable) o1).compareTo(o2);
        } else {

            return o1.toString().compareTo(o2.toString());
        }
    }
}