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Question

look at the code below
//Title: New Vision Rental System
//Version:
//Copyright: Copyright (c) 1999
//Author: PJ GP 10-01
//Company: PJ GP 10-01
//Description: None
package NewVision;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.awt.event.*;
public class OnLoanForm extends JPanel {
private Icon bgImage = new ImageIcon("Images\\BO_OnLoan\\BO_OnLoan_bg.jpg");
private Icon btnReturn = new ImageIcon("Images\\BO_OnLoan\\return_not_tinted.jpg");
private Icon btnRenew = new ImageIcon("Images\\BO_OnLoan\\renew_not_tinted.jpg");
private Icon btnReturnMO = new ImageIcon("Images\\BO_OnLoan\\return_tinted.jpg");
private Icon btnRenewMO = new ImageIcon("Images\\BO_OnLoan\\renew_tinted.jpg");
JLabel m_bgImage = new JLabel(bgImage);
JButton m_btnReturn = new JButton(btnReturn);
JButton m_btnRenew = new JButton(btnRenew);
JScrollPane m_spnDiscLoan = new JScrollPane();
String[] columnNames = {"", "Disc ID", "Branch ID", "Due Date", "Renew no"};
MyTableModel table = new MyTableModel(5, columnNames);
JTable m_tbDiscLoan = new JTable(table);
RecordController rCont = new RecordController();
//Vector renewRec = new Vector();
Vector recVector = new Vector();
Vector loanVector = new Vector();
Vector renewRentVector = new Vector(); // meant for creating the rental record to update the tables
Vector renewDiscVector = new Vector(); // meant for renewing the disc
SystemController sysCont = new SystemController();
RenewController renCont = new RenewController();
SettingController sCont = new SettingController();
int tickCnt = 0;
int renewCnt = 0; // the number of disc to be renewed
public OnLoanForm() {
try {
jbInit();
catch(Exception ex) {
ex.printStackTrace();
private void jbInit() throws Exception {
m_bgImage.setBounds(new Rectangle(0, 1, 441, 422));
this.setLayout(null);
this.setBackground(Color.white);
this.setSize(new Dimension(441, 422));
m_btnReturn.setBorder(null);
m_btnReturn.setActionCommand("Return");
m_btnReturn.setRolloverIcon(btnReturnMO);
m_btnReturn.setBounds(new Rectangle(0,391,100,20));
m_btnReturn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
m_btnReturn_actionPerformed(e);
m_btnRenew.setBorder(null);
m_btnRenew.setActionCommand("Renew");
m_btnRenew.setRolloverIcon(btnRenewMO);
m_btnRenew.setBounds(new Rectangle(111,391,100,20));
m_btnRenew.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
m_btnRenew_actionPerformed(e);
m_spnDiscLoan.getViewport().setBackground(Color.white);
m_spnDiscLoan.setBounds(new Rectangle(0, 50, 440, 325));
m_tbDiscLoan.setFont(new java.awt.Font("Century Gothic", 0, 14));
m_tbDiscLoan.setForeground(Color.darkGray);
this.add(m_btnReturn, null);
this.add(m_btnRenew, null);
this.add(m_spnDiscLoan, null);
m_spnDiscLoan.getViewport().add(m_tbDiscLoan, null);
this.add(m_bgImage, null);
m_spnDiscLoan.setBorder(BorderFactory.createEtchedBorder());
displayLoanRec();
private void displayLoanRec() {
if(rCont.readLoanRecord(sysCont.getMemberId())) {
loanVector = rCont.getLoanRec();
RentalRecord loanRec; // this is to display those disc on loan
for(int i = 0; i < loanVector.size(); i++) {
MyTableModel model = (MyTableModel) (m_tbDiscLoan.getModel());
model.addRow();
// int j = model.getRowCount()-1;
loanRec = (RentalRecord) (loanVector.elementAt(i));
model.setValueAt(new Boolean(false), i, 0);
model.setValueAt(loanRec.getDiscId(), i, 1);
model.setValueAt(loanRec.getBranchId(), i, 2);
model.setValueAt(displayDueDate(loanRec.getDate(), loanRec.getDiscType()), i, 3);
model.setValueAt(loanRec.getRenewTime()+"", i, 4);
// the few lines below are just to refresh the table
m_tbDiscLoan.invalidate();
m_tbDiscLoan.validate();
m_tbDiscLoan.repaint();
m_spnDiscLoan.invalidate();
m_spnDiscLoan.validate();
m_spnDiscLoan.repaint();
private boolean collectSelectedList() {
MyTableModel model = (MyTableModel)m_tbDiscLoan.getModel();
if(model.getRowCount()!=0){
for(int i=0; i<model.getRowCount(); i++){
if(model.getValueAt(i,0).equals(Boolean.TRUE)){
//if(loanRec.getDiscId().equalsIgnoreCase((String)(model.getValueAt(i, 1)))) {
RentalRecord rentRecObj = (RentalRecord)loanVector.elementAt(i);
recVector.addElement(rentRecObj);
tickCnt++;
//} // end if
} // end if
} // end for
} // end if
else {
JOptionPane.showMessageDialog(this, "Table is empty");
return false;
if(tickCnt==0){
JOptionPane.showMessageDialog(this, "You do not select any disc in your table.");
return false;
return true;
// this method is meant to display the due date in the table
private String displayDueDate(String date, String type) {
//System.out.println(date);
String tempDate = date.substring(8, 10);
//System.out.println(tempDate);
String tempMonth = date.substring(5, 7);
//System.out.println(tempMonth);
String tempYear = date.substring(0, 4);
//System.out.println(tempYear);
int d = Integer.parseInt(tempDate);
int m = Integer.parseInt(tempMonth);
int y = Integer.parseInt(tempYear);
GregorianCalendar due = new GregorianCalendar(d,m,y);
int maxDay;
// Check the max day in the month
switch(m){
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
maxDay = 31;
break;
case 2 :      if(due.isLeapYear(y))
maxDay = 29;
else
maxDay = 28;
break;
default : maxDay = 30;
RentalPolicy rp = new RentalPolicy();
int dur = rp.getDur(type);
if((d+dur)>maxDay) {
m++;
if(m>12){
m=1;
y++;
d = d+dur-maxDay;
return ""+d+"/"+m+"/"+y;
else {
return ""+(d+dur)+"/"+m+"/"+y;
void m_btnReturn_actionPerformed(ActionEvent e) {
collectSelectedList();
//System.out.println(sysCont.getBranchId());
ReturnController returnCont = new ReturnController();
if(!returnCont.returnDisc(recVector, sysCont.getMemberId(), sysCont.getBranchId())) {
JOptionPane.showMessageDialog(this, "Return Failure, please try again");
recVector.removeAllElements();
private boolean collectRenewDisc(){
int check=0;
Vector exceedRenew = new Vector();
MyTableModel model = (MyTableModel)m_tbDiscLoan.getModel();
Disc noRenew;
int maxRenew = sCont.getMemberPolicy("Renew Limit");
if(model.getRowCount()!=0){
for(int i = 0; i < model.getRowCount(); i++){
if(model.getValueAt(i,0).equals(Boolean.TRUE)){
int j = Integer.parseInt((String)model.getValueAt(i,4));
if(j < maxRenew){
// collect those to be renewed
RentalRecord tempRec = (RentalRecord) loanVector.elementAt(i);
renewRentVector.addElement(tempRec);
Disc tempDisc = renCont.getDiscRenewInfO((String)model.getValueAt(i,1), ++j);
renewDiscVector.addElement(tempDisc);
renewCnt++;
System.out.println(renewCnt);
else{
// collect those that can't be renewed
noRenew = new Disc((String)model.getValueAt(i,1), (String)model.getValueAt(i, 2));
exceedRenew.addElement(noRenew);
check++;
if(!exceedRenew.isEmpty()){
String info="";
Disc show;
for(int k = 0; k < exceedRenew.size(); k++){
show = (Disc)exceedRenew.elementAt(k);
if(k!= exceedRenew.size()-1){
info = info+show.getDiscId()+", ";
else
info = info+show.getDiscId();
JOptionPane.showMessageDialog(this, "The renew limit for disc(s) with id : "+info+"\n"+
"has been reached. Please return to rent again.");
//return false;
if(check == 0){
JOptionPane.showMessageDialog(this, "You have not selected any record to be renewed.");
return false;
else{
JOptionPane.showMessageDialog(this, "There is no record to be renewed.");
return false;
exceedRenew.removeAllElements();
return true;
public void clearList() {
MyTableModel model = (MyTableModel)m_tbDiscLoan.getModel();
int i = (model.getRowCount()-1);
while(i>=0){
model.removeRow(i);
i--;
m_tbDiscLoan.invalidate();
m_tbDiscLoan.validate();
m_tbDiscLoan.repaint();
m_spnDiscLoan.invalidate();
m_spnDiscLoan.validate();
m_spnDiscLoan.repaint();
void m_btnRenew_actionPerformed(ActionEvent e) {
if(collectRenewDisc()){
renCont.renewDisc(renewRentVector, renewDiscVector, renewCnt);
loanVector.removeAllElements();
renewRentVector.removeAllElements();
renewDiscVector.removeAllElements();
renewCnt=0;
clearList();
displayLoanRec();
}

Answer 1

Please repaste your code inside a
//your code here
section. Please ...
--lichu