Jtable and Scrollbar

[Pradeep Selvaraj]

Hello there,

i am trying to have a Table and a scrollbar in my prg.This is the code what i have written.I cudnt find the mistake.I am not getting the Scrollbar or Columnname.Can u guyz help me out plz.

class catalogue extends JFrame
{
 
JLabel Label1 = new JLabel();
  JTable jTable1;
  JScrollPane scrollPane;
  JButton AddButton = new JButton();
  JButton ChangeButton = new JButton();
  JButton ClearButton = new JButton();
  JButton DelButton = new JButton();
  JLabel Label2 = new JLabel();
 

 

 

List list = new ArrayList();
int index = 0;
ListIterator l;
int x = 0;
String user;
String pass;
 
public catalogue(String user,String pass)
{
this.user = user;
this.pass = pass;
try
{
Drawframe();
 
}
catch(Exception e)
{
e.printStackTrace();
}
 
};
 
private void Drawframe()
 {
 String columnNames[] = { "Column 1", "Column 2", "Column 3" };
String dataValues[][] =
{
{ "12", "234", "67" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
{ "279", "9033", "3092" },
{ "12", "234", "67" },
{ "-123", "43", "853" },
{ "93", "89.2", "109" },
};
 
 this.setTitle("Catalogue of Audio Albums");
 jTable1 = new JTable(dataValues,columnNames);
 
scrollPane = new JScrollPane(jTable1);
this.getContentPane().add(scrollPane,BorderLayout.CENTER);
  

[Craig Wood]

You almost had it. I think you just needed to call a few more JFrame methods, notably setSize and setVisible.

import java.awt.*;
import java.util.*;
import java.util.List;
import javax.swing.*;
 
class Catalogue extends JFrame
{
    JLabel Label1 = new JLabel();
    JTable jTable1;
    JScrollPane scrollPane;
    JButton AddButton = new JButton();
    JButton ChangeButton = new JButton();
    JButton ClearButton = new JButton();
    JButton DelButton = new JButton();
    JLabel Label2 = new JLabel();
    List list = new ArrayList();
    int index = 0;
    ListIterator l;
    int x = 0;
    String user;
    String pass;
 
    public Catalogue(String user, String pass)
    {
        this.user = user;
        this.pass = pass;
        setTitle("Catalogue of Audio Albums");
        JTable table = makeTable();
        scrollPane = new JScrollPane(table);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        getContentPane().add(scrollPane, BorderLayout.CENTER);
        setSize(300,300);
        setLocation(200,200);
        setVisible(true);
    }
 
    private JTable makeTable()
    {
        String columnNames[] = { "Column 1", "Column 2", "Column 3" };
        String dataValues[][] =
        {
            { "12", "234", "67" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
            { "279", "9033", "3092" },
            { "12", "234", "67" },
            { "-123", "43", "853" },
            { "93", "89.2", "109" },
        };
        JTable table = new JTable(dataValues, columnNames);
        return table;
    }
 
    public static void main(String[] args)
    {
        new Catalogue("Craig Wood", "hi");
    }
}