Movinging a Column in JTable

Moving a Column in JTable

This section describes, how to move a column in JTable component. Moving is a very simple method that moves the data from one position to the other. If you want to move a column from one position to another specified position in JTable via using the moveColumn() method, you need the index of column that will count from '0' which denotes the first column of JTable. The moveColumn method takes the index of columns.

Description of program:

This program helps you in moving a column into JTable. This program creates a table through the JTable having '4' rows and '3' columns with the column header and yellow background color in it. This program uses the move method to move a column at specified position with the help of moveColumn() method. In the first table, the previous column is Name, secondary is Course and the third one is Subject. After moving, Course reaches on the first position, Name goes to the second position and Subject does not left it's position So you can see how the first column moves from first position to second position.

Here is the code of program:


import javax.swing.*;

import javax.swing.table.*;

import java.awt.*;



public class MocveColumn{

  JTable table;

  public static void main(String[] args) {

    new MocveColumn();

  }



  public MocveColumn(){

    JFrame frame = new JFrame("Moveing a column in a JTble");

    JPanel panel = new JPanel();

    String data[][] = {{"Vinod","MCA","Computer"},

                    
{"Deepak","PGDCA","History"},

                    
{"Ranjan","M.SC.","Biology"},

                    
{"Radha","BCA","Computer"}};

    String col[] = {"Name","Course","Subject"};    

    DefaultTableModel model = new DefaultTableModel(data, col);

    table = new JTable(model);

    //first column move into second position

    move(table, 1, 0);

    JTableHeader header = table.getTableHeader();

    header.setBackground(Color.yellow);

    JScrollPane pane = new JScrollPane(table);

    panel.add(pane);

    frame.add(panel);

    frame.setSize(500,150);

    frame.setUndecorated(true);

    frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);

    frame.setVisible(true);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  }



  public void move(JTable table, int mIndex, int sIndex){

    table.moveColumn(mIndex,sIndex);

  }

}

Output of program:

Initial Table:

After moving a column: