Tables Horisontal Scrolling

Question

Hellow.
I have a problem with JTable. This is code of my simple programm:
StClass.java
import javax.swing.*;
public class StClass
    public static void main(String []args)
        JFrame frm = new JFrame();
        MyTab tb = new MyTab();
        JScrollPane pn = new JScrollPane();
        pn.getViewport().add(tb, null);
        frm.getContentPane().add(pn);
        frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frm.setBounds(10,10,300,300);
        frm.show();
}MyTab.java
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableColumn;
import java.util.Vector;
import java.awt.*;
public class MyTab extends JTable
    public MyTab()
        this.setModel( DefTabModel);
        Object []R = {"1","2","3"};
        for(int i=0;i<3;i++)
            DefTabModel.addColumn("col " + String.valueOf(i));
        DefTabModel.addRow(R);
        DefTabModel.addRow(R);
        DefTabModel.addRow(R);
        DefTabModel.addRow(R);
        this.columnModel.getColumn(0).setMinWidth(140);
        this.columnModel.getColumn(1).setMinWidth(120);
        this.columnModel.getColumn(2).setMinWidth(150);
    DefaultTableModel DefTabModel = new DefaultTableModel();
}As you see: I make ScrollPane, and then I put table on it.
When there is many rows, then Vertical scrollbar appears. BUT as you see sum of width of columns is more than scrollpane width AND HORISONTAL SCROLLBAR DON't APPEARS!!!
WHAT I HAVE TO DO???

Answer 1

Try this
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);