Thread: problem in getting scrollbar in Jlist

  import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.sql.*;       class transfer extends JFrame implements ActionListener { JButton btntrans,btndel,btnexit,btnclear,btnone; ImageIcon bc; JLabel lbltitle ,label1; JTextField text1; JScrollPane scrollPane ; Thread t; DefaultListModel listModel;   public transfer()   {   setSize(550,400);	setTitle(" FILE TRANSFER ");  	Container cp=getContentPane();   lbltitle= new JLabel(bc); label1 = new JLabel(); label1.setFont(new Font("Serif", Font.PLAIN, 18)); label1.setForeground(Color.black); label1.setOpaque(true); label1.setText("Enter ip Address:");   text1 = new JTextField(20);   listModel = new DefaultListModel(); JList list=new JList(listModel); scrollPane = new JScrollPane(list); scrollPane.getViewport().add(list);   btntrans=new JButton(" ADD"); btndel= new JButton("CLEAR ALL"); btnone= new JButton(" DELETE "); btnexit=new JButton("EXIT"); btnclear=new JButton("CLEAR"); cp.setLayout(null); /cp.setBackground(Color.white); Insets ins=getInsets();  	label1.setBounds(15,30,140,40); text1.setBounds(155,35,140,30);	btntrans.setBounds(20,120,85,30); btnclear.setBounds(110,120,85,30); btnone.setBounds(200,120,85,30); list.setBounds(340,40,150,250);   btndel.setBounds(50,170,100,30); btnexit.setBounds(160,170,100,30); bltitle.setBounds(0,0,850,570); //lbltitle.setBounds(220,20,130,104);   btnclear.addActionListener(this); btnone.addActionListener(this);	btntrans.addActionListener(this); btndel.addActionListener(this);	btnexit.addActionListener(this); text1.addActionListener(this);   cp.add(scrollPane,BorderLayout.CENTER); cp.add(btntrans); cp.add(btndel); cp.add(btnone); cp.add(btnclear); cp.add(btnexit); cp.add(lbltitle); cp.add(label1); cp.add(text1); cp.add(list);   public static void main(String args[]) { transfer sl = new transfer(); sl.setVisible(true); }

i 'am unable to get the scrollbar for the Jlist..cant figure out either..plz help..!!!