How to remove all columns from JTable?

Question

How to remove all columns? Thanks.

Answer 1

If you're using DefaultTableModel, set column count to zero.

Answer 2

Faster Way::Dynamic Remove all the Column on JTable

//JTable variable name is jTable1_info....
model_info=(DefaultTableModel)jTable1_info.getModel();
//Clear all the column name on jtable jpanel-4
model_info.setColumnCount(0);

Before code on this Example

//import the DefaultTableModel
import javax.swing.table.DefaultTableModel;

public final class homepage extends javax.swing.JFrame implements ActionListener
{
    DefaultTableModel model_info;
    public homepage() throws InterruptedException
    {
        initComponents();
        create_column();//call method create jtable column names                
    }
}
private void create_column()
{
    model_info=(DefaultTableModel)jTable1_info.getModel();
    model_info.addColumn("Column_Name");
    model_info.addColumn("Column_type");
    model_info.addColumn("Column_size");        
}