Code is correct then why i cannot find the specified backgroung color ??

Question

hi everyone!!
this is quite strange for me because i have been trying to set the background color but really can't understand why i an not getting it .Please help me out...
thanks a lot!
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.*;
public class front3 extends JFrame{
      private JButton go;
      private JRadioButton download,split,zip,rename,Copymail;
     private ButtonGroup radioGroup;
      public front3()
      Container c = getContentPane();
      c.setBackground(Color.pink);
      c.setLayout(new  GridLayout(0,1)); 
      setSize(530,120);
      setResizable(false); // to disable  the maximize  button 
        ImageIcon ii= new ImageIcon("split.jpg");
        split=new JRadioButton("Splitter",true);
     ImageIcon ij= new ImageIcon("zip.jpg");
      zip=new JRadioButton("Zipper",ij,false);
     ImageIcon ik= new ImageIcon("rename.jpg");
      rename=new JRadioButton("Rename all",ik,false);
     ImageIcon il= new ImageIcon("copymail.jpg");
     Copymail=new JRadioButton("Copy Mail",il,false);
     ImageIcon im= new ImageIcon("download.jpg");
     download=new JRadioButton("Download",im,false);
c.add(download);
      c.add (split);
      c.add(zip);
      c.add(rename);
      c.add(Copymail); 
setSize(300,500);
          show();
setVisible(true);
public static void main(String args[])
              front3 f=new front3();
              f.addWindowListener(
                   new WindowAdapter() {
                        public void windowClosing(WindowEvent e)
                             System.exit(0);
 

Answer 1

Couple of things:
* either use your brackets like this:if(boolean) {
}or like this:if(boolean)
}but not both styles: it looks messy.
* in Java it is a convention that variable names and method names always start with a lower case letter. Class names start with an uppercase. Of course you can make up you own coding style, but imagine that when you work with a couple of fellow students (or co-workers) on a project and everyone would use their own style: your code would be hard to read!
* The linesshow();
setVisible(true);do the same thing. Remove the show() since it is deprecated.
Now, for your problem. The background of your JFrame is indeed changed, but you are placing other components on top of your JFrame so you can't see it's background color any more.