nothing shows. what did i forget?

[kelvin cheung]

 
import java.awt.*;
import javax.swing.*;
public class testPanel extends JFrame {
    JTextField text1;
    JLabel label1;
    JButton button1;
    JTextArea area;
    JScrollPane scroll;
    /** Creates a new instance of testPanel */
    public testPanel() {
        Container flate = getContentPane(); // getContentPane is a method in JFrame
        JPanel p1 = new JPanel(new BorderLayout());
        JPanel p2 = new JPanel(new GridLayout(2,2));
        
        label1 = new JLabel("Label");
        button1 = new JButton("Button");
        text1 = new JTextField("Text");
        area = new JTextArea(3,4);
        scroll = new JScrollPane(area);
        
        p1.add(label1, BorderLayout.NORTH);
        p1.add(scroll, BorderLayout.SOUTH);
        
        p2.add(button1);
        p2.add(text1);
        
        flate.add(p1, BorderLayout.WEST);
        flate.add(p2, BorderLayout.EAST);
        
        setVisible(true);
        setSize(400,400);
    }
    
    public static void main(String[] a) {
    new testPanel();
    }
    
} 

[sasi kala]

hi kelvin,

add this line at end of your constructor

setContentPane(flate);
setSize(400,400);
setVisible(true);


Hope This Helps.

All The Best

[kelvin cheung]

hi sasi kala,
i see~ ...
oh , the setSize has to be before setVisible.

thank you for your help ^^