WindowBuilderPRO v Eclipe: funkcni JTable + JScrollPane

// FUNKCNI JTABLE + JSCROLLPANE S WINDOW BUILDER PRO V ECLIPSE

import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;

@SuppressWarnings("serial")
public class Tabulka extends JFrame {

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    Tabulka frame = new Tabulka();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public Tabulka() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 400, 250);
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        JScrollPane jsp = new javax.swing.JScrollPane();
        JTable jtbl = new javax.swing.JTable();

        jtbl.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            },
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
            }
        ));
        jsp.setViewportView(jtbl);

        getContentPane().add(jsp, BorderLayout.CENTER);

    }
}