如何从JTable中删除所有列？

Question

如何删除所有列？感谢。

Answer 1

如果您使用的是DefaultTableModel，请将column count设置为零。

Answer 2

  

更快的方式::动态删除JTable上的所有列

//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);

此示例之前的代码

//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");        
}

Answer 3

        TableColumnModel cm = jTableThatUCreated.getColumnModel();
        while (cm.getColumnCount()!=0) {                
            TableColumn column = cm.getColumn(0);
            cm.removeColumn(column);
        }

Java 7不会将columnColumnNumber（0）设置为先前的答案。