import javax.swing.*;


public class Test extends JFrame    {

    JPanel p = new JPanel();
    JButton b = new JButton("Hello");
    JTextField t = new JTextField("Hi");
    JTextArea ta = new JTextArea("How are you");
    JCheckBox cb = new JCheckBox("Hello");
    //JFileChooser fc = new JFileChooser();
    JScrollBar sb = new JScrollBar();

    public static void main(String[] args) {

        new Test();


    }
    public Test()   {
        super("Basic Swing App");
        setSize(400, 300);
        setResizable(true);
        p.add(b);
        p.add(t);
        p.add(ta);
        p.add(cb);
        p.add(sb);
        add(p);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);
    }

}