JProgerss bar or JSlider?

Question

Hi everybody. Well i developed some desktop base application which is connected to MySql database and when i run this, it takes a moment to be dislayed on the screen, so i think that would be a good idea use something like progress bar or maybe slider. To be honest, i'm not to sure what should i use and how. Also i use JTable to display some records from database and what i need is to highlight every fourth row ie. if displayed 30 rows, so every fourth is highlight lightblue or yellow. Thanks very much for any help.

Answer 1

Hi, i'm back again, thanks for the help. I'll work with that, by the way this is my code so far which allows me to display data in table:
This methods cams from my controller class:.....
* Create DefaultTableModel to view all training answers
* returns DefaultTableModel
public DefaultTableModel getAnswerTableModel(String unitId) throws Exception {
tableModel = new DefaultTableModel(getTableColNames(),0);
int tempID = Integer.parseInt(unitId);
String whereClause = "unitId = " + tempID ;
Vector answerVec = answer.getAll(conn, whereClause);
if (answerVec.size() == 0)
throw new Exception("No answer retrieved");
for (Iterator i = answerVec.iterator(); i.hasNext();) {
TrainingAnswer p=(TrainingAnswer) i.next();
Vector rowData = new Vector();
rowData.add(new Integer(p.getQuestionId()));
rowData.add(p.getAnswer());
rowData.add(new Boolean(p.getCorrectAnswer()));
tableModel.addRow(rowData);
return tableModel;
* returns Vector of tblAnswers ColNames
public Vector getTableColNames() throws Exception {
Vector colNameVec = new Vector();
StringTokenizer st = new StringTokenizer(answer.getFieldList2(), ",");
while(st.hasMoreTokens())
colNameVec.add(st.nextToken());
return colNameVec;
and methods in my View (GUI):.......
public class TrainingAnswerView extends javax.swing.JInternalFrame {
private TrainingQuestionController questionControl = null;
private TrainingAnswerController answerControl = null;
private DefaultTableModel quesTableModel = null;
private DefaultTableModel answerTableModel = null;
private TableCellRenderer renderer = null;
/** Creates new form TrainingAnswerView */
public TrainingAnswerView() {
initComponents();
public TrainingAnswerView(TrainingQuestionController questionControl, TrainingAnswerController answerControl) {
this.questionControl = questionControl;
this.answerControl = answerControl;
initComponents();
try {
unitCbo.setModel(new DefaultComboBoxModel(questionControl.getUnit()));
String id = questionControl.getUnitId((String)unitCbo.getSelectedItem());
int surId = Integer.parseInt(id);
showAllQuestions();
showAnswer();
showQuestionCount();
}catch (Exception err) {
displayMessage(err.getMessage(), JOptionPane.ERROR_MESSAGE);
setVisible(true);
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
public void showAnswer(){
try{
String unitId = questionControl.getUnitId((String)unitCbo.getSelectedItem());
answerTableModel=this.answerControl.getAnswerTableModel(unitId) ;
answerTable.setModel(answerTableModel);
int count = answerTable.getRowCount();
for (int i = 4; i <= count; i+=4){              
answerTable.setBackground(Color.yellow);// yes, i know this method change table color not just row
System.out.println("row " + i);
}catch (Exception err){
displayMessage("Unable to retrieve answers from database. ", JOptionPane.ERROR_MESSAGE);
This table just display data form database, not other function, so i want to just highlight every fourth row.
Thanks pkwooster, for your help:-).