problem in adding jscrollbar to panel

[Mani_4]

hi
please any one can tell how to add jscrollbar to the following code

import java.awt.*;
import javax.swing.JScrollPane;  
import javax.swing.*;
import java.awt.event.*;
import java.applet.*;
import java.sql.*;
	public class LoginPage extends JFrame 
	{  
		JComboBox jb;
		JFrame f2;
		public static String s1,s2,s3,s4,s5;
		char ch[]=new char[30];
		JTextField f;
		JPanel jp;
		JPasswordField f1;
		Container c;
		JLabel l1, l2,l3;
		static JLabel l4=new JLabel("hai");
		JButton b1,b2,b3,b4,b5,b6;
		JScrollPane jsp;
		ImageIcon im;
		String s[]={"-------Select------","Incharge","Assistent","Staff","co_staff"};
		JComboBox jcb;
		public static Dimension scrsize;
		LoginPage()
		{
			c=getContentPane();
			l3=new JLabel(im);
			Toolkit toolkit=Toolkit.getDefaultToolkit();
			scrsize=toolkit.getScreenSize();
			setSize(scrsize.width,scrsize.height-50);		
			jp=new JPanel();
			jp.setLayout(null);
			l1=new JLabel("user name :");
			f=new JTextField(30);
			l2=new JLabel("password :");
			f1=new JPasswordField(30);
			jcb=new JComboBox(s);
			b1=new JButton("submit");
			b2=new JButton("Admin Login");
			b3=new JButton("about");
			b4=new JButton("Contact us");
			b5=new JButton("help");
			b6=new JButton("Back to Login Page");
			l1.setBounds(450,400,75,25);
			f.setBounds(600,400,180,25);
			l2.setBounds(450,500,75,25);
			l1.setForeground(Color.white);
			l2.setForeground(Color.white);
			f1.setBounds(600,500,180,25);
			l3.setBounds(0,0,scrsize.width,170);
			jcb.setBounds(830,400,120,25);
			b1.setBounds(660,610,100,25);
			b2.setBounds(315,170,180,25);
			b3.setBounds(495,170,180,25);
			b4.setBounds(675,170,180,25);
			b5.setBounds(855,170,180,25);
			jp.add(l1);
			jp.add(f);
			jp.add(jcb);
			jp.add(l2);
			jp.add(f1);
			jp.add(jcb);
			jp.add(b1);
			add(b2);
			add(l4);
			add(l3);
			add(b3);
			add(b4);
			add(b5);
			jp.setBackground(Color.darkGray);
			jp.setForeground(Color.white);
			add(jsp);			
			jcb.addActionListener(this);
			b1.addActionListener(this);
			b2.addActionListener(this);
			b3.addActionListener(this);
			b4.addActionListener(this);
			b5.addActionListener(this);
			b6.addActionListener(this);
			setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			setVisible(true);
			
		}
}

Moderator Edit: Code tags added

[Norm]

What are you going to control with a JScrollBar?
Or is it a JScrollPane you want?

Have you looked in the java tutorial for how to use them?

[Webuser]

the thread is for SWING forum ;)

[Fubarable]

the thread is for SWING forum ;)

Agree -- Moving.

Also, to the original poster, hello, and welcome to the forum. I hope you don't mind that I edited your code and added code tags which should help make your posted code retain its formatting and be more readable.

To do this yourself, highlight your pasted code (please be sure that it is already formatted when you paste it into the forum; the code tags don't magically format unformatted code) and then press the code button, and your code will have tags.

Another way to do this is to manually place the tags into your code by placing the tag [code] above your pasted code and the tag [/code] below your pasted code like so:

[code]
  // your code goes here
  // notice how the top and bottom tags are different
[/code]

Best of luck, and again, welcome!

[Mani_4]

hi NORM sir,
thank u for replying sir

whenever i placed in any 15 inches screen it doesn't show complete window
some of buttons are hide

i want my window is suitable for any computer sir

and i want JSCROLLPANE sir

yes sir i see java tutorial how to add it

but it doesn't work it sir


thanks once again sir

[Fubarable]

Hello Mani:

Please elaborate because "it doesn't work" tells us nothing about what you're doing wrong. The tutorials have worked for me and most other Swing coders here. For example, in your code above, you're adding a JScrollPane to a container, but you don't appear to be adding anything that you want scrolled to the JScrollPane's viewport, so the code above doesn't conform to the tutorials instructions and of course won't work.

I suggest you create a very small program that tries to use a JScrollPane, and then if it doesn't work, post the complete program together with any error messages you may have received, and then we'll be able to help you.

Much luck!

[j2me64]

but it doesn't work it sir

clear, if you don't use any layout to place your components, each add() will override the previous component. so sir, study this first.