Disallow resizing a column by dragging between headers in a JTable Component with Java

Let us first create a table with rows and columns −

String data[][] = { {"Australia","5","1"},    {"US","10","2"},    {"Canada","9","3"},    {"India","7","4"},    {"Poland","2","5"},    {"SriLanka","5","6"} }; String col [] = {"Team","Selected Players","Rank"}; DefaultTableModel tableModel = new DefaultTableModel(data,col); JTable table = new JTable(tableModel);

Now, we will disable resizing of columns by dragging headers −

table.getTableHeader().setResizingAllowed(false);

The following is an example to disallow resizing a column by dragging between headers in a JTable: −

Example

package my; import java.awt.Dimension; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JRootPane; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class SwingDemo {    public static void main(String[] argv) throws Exception {       JFrame frame = new JFrame("Demo");       JPanel panel = new JPanel();       String data[][] = { {"Australia","5","1"},          {"US","10","2"},          {"Canada","9","3"},          {"India","7","4"},          {"Poland","2","5"},          {"SriLanka","5","6"}       };       String col [] = {"Team","Selected Players","Rank"};       DefaultTableModel tableModel = new DefaultTableModel(data,col);       JTable table = new JTable(tableModel);       table.getTableHeader().setResizingAllowed(false);       Dimension dim = new Dimension(50,2);       table.setIntercellSpacing(new Dimension(dim));       JScrollPane scrollPane = new JScrollPane(table);       panel.add(scrollPane);       frame.add(panel);       frame.setSize(600,400);       frame.setUndecorated(true);       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       frame.getRootPane().setWindowDecorationStyle(JRootPane.COLOR_CHOOSER_DIALOG);       frame.setVisible(true);    } }

The output is as follows. You won’t be able to resize the columns by dragging between table header −

Output