"background color not showing"

Question

Hi all,
I am back with a new problem..hope u guys will help me out..
I have a very basic prgm where i am trying out the GUI things..
here is my code:import java.lang.* ;
import java.awt.* ;
import java.awt.event.*;
import javax.swing.* ;
class SecTest {
public static void main(String args[])
  JFrame MyFrame = new JFrame("MyFrame");
  MyFrame.setBackground(Color.pink);
  // MyFrame.show();//if i put it only here..it doesnt show me the string
  MyFrame.setBounds(100,100,400,400);
  MyFrame.addWindowListener(new WindowAdapter()
    public void windowClosing(WindowEvent e)
      System.exit(0);
  Toolkit MyTk = Toolkit.getDefaultToolkit();
  Image MyImg = MyTk.getImage("not.gif"); // not.gif is in my current directory
  MyFrame.setIconImage(MyImg);
  Container MyContentPane = MyFrame.getContentPane();
  JPanel MyPanel = new JPanel();
  MyContentPane.add(MyPanel);
  MyContentPane.add(new NewPanel());
  MyFrame.show();
  // but then if i have .show() at both places..i just get a flash of pink background and again the usual gray one..
class NewPanel extends JPanel {
public void paintComponent(Graphics g)
  super.paintComponent(g);
  Font f = new Font("SansSerif", Font.BOLD+Font.ITALIC, 20);
  g.setFont(f);
  g.setColor(new Color(0,128,124));
  g.drawString("Hello There..This is my first GUI program",50,50);
};Thanks & Regards,

Answer 1

You want to set the JPanel color pink so it shows, because that's the topmost layer, not the frames. And the reason why if you add show() up there your String doesn't appear, is because you haven't created the JPanel that display that yet. You need to use show() after you've created all your components so they appear. Here's the modified code:
import java.lang.* ;
import java.awt.* ;
import java.awt.event.*;
import javax.swing.* ;
class SecTest {
public static void main(String args[])
  JFrame MyFrame = new JFrame("MyFrame");
  //MyFrame.setBackground(Color.pink);
  // MyFrame.show();//if i put it only here..it doesnt show me the string
  MyFrame.setBounds(100,100,400,400);
  MyFrame.addWindowListener(new WindowAdapter()
    public void windowClosing(WindowEvent e)
      System.exit(0);
  Toolkit MyTk = Toolkit.getDefaultToolkit();
  Image MyImg = MyTk.getImage("not.gif"); // not.gif is in my current directory
  MyFrame.setIconImage(MyImg);
  Container MyContentPane = MyFrame.getContentPane();
  JPanel MyPanel = new JPanel();
  MyContentPane.add(MyPanel);
  MyContentPane.add(new NewPanel());
  MyFrame.show();
  MyFrame.show();
  // but then if i have .show() at both places..i just get a flash of pink background and again the usual gray one..
class NewPanel extends JPanel {
public void paintComponent(Graphics g)
  super.paintComponent(g);
  setBackground(Color.pink);
  Font f = new Font("SansSerif", Font.BOLD+Font.ITALIC, 20);
  g.setFont(f);
  g.setColor(new Color(0,128,124));
  g.drawString("Hello There..This is my first GUI program",50,50);
};