WindowBuilder Eclipse doesnt respond to actionlistener - java

I have a question. Im using WindowBuilder in Eclipse and when i type in the code,my action listener doesnt work. I tried everything.
Also,another question,when using WindowBuilder,what is the name of my frame object? I see there thtat it is made in my class,but it doesnt have name.
public OrdinacijaGui()
{
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
setBounds(600 , 300 , 450 , 300);
setTitle("Dr Idrizovic");
getContentPane().setLayout(null);
JButton regUslugaButt = new JButton("Registar usluga");
regUslugaButt.setBounds(10, 11, 150, 30);
getContentPane().add(regUslugaButt);
JButton regMaterijalaButt = new JButton("Registar materijala");
regMaterijalaButt.setBounds(10, 71, 150, 30);
getContentPane().add(regMaterijalaButt);
JButton regIntervencijaButt = new JButton("Registar intervencija");
regIntervencijaButt.setBounds(10, 131, 150, 30);
getContentPane().add(regIntervencijaButt);
JButton regDijagnozaButt = new JButton("Registar dijagnoza");
regDijagnozaButt.setBounds(10, 191, 150, 30);
getContentPane().add(regDijagnozaButt);
JButton exitButt = new JButton("Zavrsetak rada");
exitButt.setBounds(143, 232, 150, 30);
getContentPane().add(exitButt);
JButton evidencijaPacButt = new JButton("Evidencija pacijenata");
evidencijaPacButt.setBounds(230, 11, 200, 30);
getContentPane().add(evidencijaPacButt);
JButton zakazivanjePacButt = new JButton("Zakazivanje pacijenata");
zakazivanjePacButt.setBounds(230, 71, 200, 30);
getContentPane().add(zakazivanjePacButt);
JButton evidencijaStomatologaButt = new JButton("Evidencija stomatologa");
evidencijaStomatologaButt.setBounds(230, 131, 200, 30);
getContentPane().add(evidencijaStomatologaButt);
JButton izvrseneUslugeButt = new JButton("Izvrsene usluge");
izvrseneUslugeButt.setBounds(230, 191, 200, 30);
getContentPane().add(izvrseneUslugeButt);
thehandler handler = new thehandler();
regUslugaButt.addActionListener(handler);
regMaterijalaButt.addActionListener(handler);
regIntervencijaButt.addActionListener(handler);
regDijagnozaButt.addActionListener(handler);
exitButt.addActionListener(handler);
evidencijaPacButt.addActionListener(handler);
zakazivanjePacButt.addActionListener(handler);
evidencijaStomatologaButt.addActionListener(handler);
izvrseneUslugeButt.addActionListener(handler);
}
public class thehandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
if(event.getSource() == regMaterijalaButt )
{
RegistarMaterijala regMat = new RegistarMaterijala();
}
if (event.getSource() == exitButt)
{
System.exit(0);
}
}
}


You button is defined twice, once as a local variable and once as an instance variable
JButton regMaterijalaButt = new JButton("Registar materijala");
Above is where you are defining the button as a local variable
if(event.getSource() == regMaterijalaButt )
Your ActionListener is referencing the instance variable.
Your code should be:
//JButton regMaterijalaButt = new JButton("Registar materijala");
regMaterijalaButt = new JButton("Registar materijala");

Related

JFrame: navigate to another frame using JButton

I'm trying to navigate with buttons in Java Swing.
I want to go to another existing frame when i click on a button.
I will attach first the Menu Panel:
public class MenuPanel extends JFrame implements ActionListener {
JLabel l1,l2;
JButton btn1,btn2,btn3,btn4;
MenuPanel()
{
setVisible(true);
setSize(600, 300);
setLayout(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle("Menu Panel For Final Project");
l1 = new JLabel("Menu Panel Bitches: ");
l2 = new JLabel("This Program Made By Ghetto K");
l1.setForeground(Color.RED);
l1.setFont(new Font("Arial", Font.BOLD, 28));
l2.setForeground(Color.RED);
l2.setFont(new Font("Arial", Font.ITALIC,22));
btn1 = new JButton("Add Child");
btn2 = new JButton("Add Worker");
btn3 = new JButton("Add Class");
btn4 = new JButton("Add Task");
btn1.addActionListener(this);
btn2.addActionListener(this);
btn3.addActionListener(this);
btn4.addActionListener(this);
l1.setBounds(150, 30, 400, 30);
l2.setBounds(150, 80, 400, 30);
btn1.setBounds(0, 230, 120, 30);
btn2.setBounds(160, 230, 120, 30);
btn3.setBounds(465, 230, 120, 30);
btn4.setBounds(320, 230, 120, 30);
add(l1);
add(l2);
add(btn1);
add(btn2);
add(btn3);
add(btn4);
}
public static void main(String[] args) {
new MenuPanel();
}
#Override
public void actionPerformed(ActionEvent e) {
if(e.getSource()==btn1)
{
}
else if(e.getSource()==btn2)
{
}
else if(e.getSource()==btn3)
{
}
}
I want to navigate to this panel:
public class AddWorkerPanel extends JFrame implements ActionListener {
static Connection con = DatabaseConnection.getConnection();
JLabel l1, l2, l3;
JTextField tf1, tf2;
JButton btn1, btn2;
AddWorkerPanel()
{
setVisible(true);
setSize(600, 300);
setLayout(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle("Add Worker form in Java");
l1 = new JLabel("Add Worker Form - Type Details Below:");
l1.setForeground(Color.blue);
l1.setFont(new Font("Serif", Font.BOLD, 20));
l2 = new JLabel("Worker-Name:");
l3 = new JLabel("Worker-Class-Number:");
tf1 = new JTextField();
tf2 = new JTextField();
btn1 = new JButton("Submit");
btn2 = new JButton("Clear");
btn1.addActionListener(this);
btn2.addActionListener(this);
l1.setBounds(100, 30, 400, 30);
l2.setBounds(80, 70, 200, 30);
l3.setBounds(80, 110, 200, 30);
tf1.setBounds(300, 70, 200, 30);
tf2.setBounds(300, 110, 200, 30);
btn1.setBounds(80, 230, 200, 30);
btn2.setBounds(300, 230, 200, 30);
add(l1);
add(l2);
add(tf1);
add(l3);
add(tf2);
add(btn1);
add(btn2);
}
public static void main(String[] args) {
new AddWorkerPanel();
}
}

A JFrame is the actual frame that sits on the screen. So what you want to do is derive your MenuPanel and AddWorkerPanel classes from JPanel, so that they can both sit inside of one frame. Then, in your main frame class, you can have a CardLayout holding both of your panels, and have a button that cycles through the cards on the card layout, using the next() method in the card layout instance that you have stored.

If you just want to close one JFrame and then open the other you should be avble by just simply doing this in the calling method of your button:
button.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
new AddWorkerPanel();
super.dispose();
}
}

Java Swing: Change JButton to an image button

I have been trying this for hours. I want to change each of the JButton components to image buttons (They were radio buttons that's why the variable names don't make sense). The for loop inside is just displaying all the images under the button's. Each image is called Option1, Option2, etc. So what I have been trying to do is get rid of the for loop and just have 10 buttons with images on them that you can click.
If someone could help me figure that out that would be great. All I've been able to do is have the button created with an image but the button appears on a completely different window.
public class JDialog2 extends JDialog {
private final JPanel contentPanel = new JPanel();
/**
* Create the dialog.
*/
public JDialog2(Quiz quiz) {
setBounds(100, 100, 450, 600);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
contentPanel.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("2、Favourite subject at Hogwarts");
lblNewLabel_1.setFont(new Font("Arial", Font.PLAIN, 14));
lblNewLabel_1.setBounds(94, 10, 248, 15);
contentPanel.add(lblNewLabel_1);
ButtonGroup btGroup = new ButtonGroup();
for(int i=1; i<=7; i++) {
ImageIcon image1 = new ImageIcon("Option" + i + ".jpg");
image1.setImage(image1.getImage().getScaledInstance(50, 50, Image.SCALE_DEFAULT));
JLabel imageLablel1=new JLabel(image1);
contentPanel.add(imageLablel1);
imageLablel1.setBounds(29, 75 * i - 25, 50, 50);
}
JButton radioButton_1 = new JButton("1.Care of Magical Creatures");
radioButton_1.setBounds(29, 25, 226, 23);
contentPanel.add(radioButton_1);
JButton radioButton_2 = new JButton("2.Charms");
radioButton_2.setBounds(29, 50, 158, 23);
contentPanel.add(radioButton_2);
JButton radioButton_3 = new JButton("3.Defense Against the Dark Arts");
radioButton_3.setBounds(29, 75, 255, 23);
contentPanel.add(radioButton_3);
JButton radioButton_4 = new JButton("4.Divination");
radioButton_4.setBounds(29, 100, 121, 23);
contentPanel.add(radioButton_4);
JButton radioButton_5 = new JButton("5.Herbology");
radioButton_5.setBounds(29, 125, 179, 23);
contentPanel.add(radioButton_5);
JButton radioButton_6 = new JButton("6.History of Magic");
radioButton_6.setBounds(29, 150, 158, 23);
contentPanel.add(radioButton_6);
JButton radioButton_7 = new JButton("7.Muggle Studies");
radioButton_7.setBounds(29, 175, 121, 23);
contentPanel.add(radioButton_7);
JButton radioButton_8 = new JButton("8.Potions");
radioButton_8.setBounds(29, 200, 121, 23);
contentPanel.add(radioButton_8);
JButton radioButton_9 = new JButton("9.Study of Ancient Runes");
radioButton_9.setBounds(29, 220, 255, 23);
contentPanel.add(radioButton_9);
JButton radioButton_10 = new JButton("10.Transfiguration");
radioButton_10.setBounds(29, 245, 179, 23);
contentPanel.add(radioButton_10);
btGroup.add(radioButton_1);
btGroup.add(radioButton_2);
btGroup.add(radioButton_3);
btGroup.add(radioButton_4);
btGroup.add(radioButton_5);
btGroup.add(radioButton_6);
btGroup.add(radioButton_7);
btGroup.add(radioButton_8);
btGroup.add(radioButton_9);
btGroup.add(radioButton_10);
JButton btnCommit = new JButton("Commit");
btnCommit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Question question = quiz.getNextQuestion();
int choice = 0;
Enumeration<AbstractButton> en = btGroup.getElements();
while (en.hasMoreElements()) {
AbstractButton ab = en.nextElement();
choice++;
if (ab.isSelected()) {
break;
}
}
question.setSelectedAnswer(choice - 1);
JDialog3 dialog3 = new JDialog3(quiz);
dialog3.setVisible(true);
exit();
}
});
btnCommit.setBounds(300, 138, 93, 23);
contentPanel.add(btnCommit);
}
public void exit(){
this.setVisible(false);
}
}

Issue in Radio Button Action Listener

I have written some code when one of the option in radio button is clicked
it should display one jlabel and jtext field. And when other option in the radio button is clicked it should hide the previous shown jlabel and jtext field and display new jlabel and jtext field.
In the output when I click on one of the radio button it is displaying nothing unless and until I maximize my Window. After geting my jlabel and jtextfield If I click on other radio button the jlabel and jtextfield is hidden but Im not able to see new jlabel and jtextfield for that radiobutton.
enter code here
public class Emp4 {
private JFrame frame;
private JTextField jtxtName;
private JTextField jtxtAge;
private JTextField jtxtSal;
private JTextField jtxtHour_Pay;
private JTextField jtxtHour_Worked;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Emp4 window = new Emp4();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Emp4() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(0, 0, 1000, 800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JPanel panel = new JPanel();
panel.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel.setBounds(30, 11, 414, 36);
frame.getContentPane().add(panel);
panel.setLayout(null);
JLabel lblEmployeeDatabase = new JLabel("Employee Database");
lblEmployeeDatabase.setFont(new Font("Tahoma", Font.PLAIN, 15));
lblEmployeeDatabase.setBounds(157, 7, 193, 25);
panel.add(lblEmployeeDatabase);
JPanel panel_1 = new JPanel();
panel_1.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel_1.setBounds(10, 61, 464, 230);
frame.getContentPane().add(panel_1);
panel_1.setLayout(null);
JLabel jlblEmpName = new JLabel("Employee Name");
jlblEmpName.setBounds(10, 11, 110, 14);
panel_1.add(jlblEmpName);
jtxtName = new JTextField();
jtxtName.setBounds(114, 8, 120, 20);
panel_1.add(jtxtName);
jtxtName.setColumns(10);
JLabel jlblEmpAge = new JLabel("Employee Age");
jlblEmpAge.setBounds(10, 52, 110, 14);
panel_1.add(jlblEmpAge);
jtxtAge = new JTextField();
jtxtAge.setColumns(10);
jtxtAge.setBounds(114, 49, 120, 20);
panel_1.add(jtxtAge);
JLabel jlblEmpType = new JLabel("Employee Type");
jlblEmpType.setBounds(10, 95, 110, 14);
panel_1.add(jlblEmpType);
JRadioButton jrdbuttonFullTime = new JRadioButton("Full Time");
JRadioButton jrdbtnContract = new JRadioButton("Contract ");
JLabel jlblEmpHour = new JLabel("Hourly Rate");
jlblEmpHour.setBounds(5, 121, 66, 14);
ButtonGroup group =new ButtonGroup();
JLabel jlblEmpSal = new JLabel("Salary");
jlblEmpSal.setBounds(114, 121, 66, 14);
JLabel jlblEmpWork = new JLabel("Hours Worked");
jlblEmpWork.setBounds(150, 120, 86, 24);
jtxtSal = new JTextField();
jtxtSal.setColumns(10);
jtxtSal.setBounds(164, 121, 109, 23);
jtxtHour_Pay = new JTextField();
jtxtHour_Pay.setColumns(10);
jtxtHour_Pay.setBounds(75, 121, 59, 23);
jtxtHour_Worked = new JTextField();
jtxtHour_Worked.setColumns(10);
jtxtHour_Worked.setBounds(243, 121, 109, 23);
group.add(jrdbuttonFullTime);
group.add(jrdbtnContract);
jrdbuttonFullTime.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(jrdbuttonFullTime.isSelected()){
//jrdbtnContract.setSelected(false);
panel_1.add(jlblEmpSal);
panel_1.add(jtxtSal);
jlblEmpHour.setVisible(false);
jtxtHour_Pay.setVisible(false);
jtxtHour_Worked.setVisible(false);
jlblEmpWork.setVisible(false);
}
}
});
jrdbuttonFullTime.setBounds(113, 91, 109, 23);
panel_1.add(jrdbuttonFullTime);
jrdbtnContract.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(jrdbtnContract.isSelected()){
//jrdbuttonFullTime.setSelected(false);
panel_1.add(jlblEmpHour);
panel_1.add(jtxtHour_Pay);
panel_1.add(jlblEmpWork);
panel_1.add(jtxtHour_Worked);
jlblEmpSal.setVisible(false);
jtxtSal.setVisible(false);
}
}
});
jrdbtnContract.setBounds(218, 91, 109, 23);
panel_1.add(jrdbtnContract);
}
}

Insteed of adding and removing components, simply add all and hide/show them on radiobox selection like this:
panel_1.add(jlblEmpSal);
panel_1.add(jtxtSal);
panel_1.add(jlblEmpHour);
panel_1.add(jtxtHour_Pay);
panel_1.add(jlblEmpWork);
panel_1.add(jtxtHour_Worked);
ActionListener myAction = new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
jlblEmpHour.setVisible(jrdbtnContract.isSelected());
jtxtHour_Pay.setVisible(jrdbtnContract.isSelected());
jtxtHour_Worked.setVisible(jrdbtnContract.isSelected());
jlblEmpWork.setVisible(jrdbtnContract.isSelected());
jlblEmpSal.setVisible(jrdbuttonFullTime.isSelected());
jtxtSal.setVisible(jrdbuttonFullTime.isSelected());
}
};
myAction.actionPerformed(null); // to initialize labels first
jrdbuttonFullTime.addActionListener(myAction); // add actionlisteners
jrdbtnContract.addActionListener(myAction);// add actionlisteners
As you can see, you dont even need 2 separate action listeners as one but shared instance is just enough.
So the complete app will look like this:
public class Emp4 {
private JFrame frame;
private JTextField jtxtName;
private JTextField jtxtAge;
private JTextField jtxtSal;
private JTextField jtxtHour_Pay;
private JTextField jtxtHour_Worked;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Emp4 window = new Emp4();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Emp4() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(0, 0, 1000, 800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JPanel panel = new JPanel();
panel.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel.setBounds(30, 11, 414, 36);
frame.getContentPane().add(panel);
panel.setLayout(null);
JLabel lblEmployeeDatabase = new JLabel("Employee Database");
lblEmployeeDatabase.setFont(new Font("Tahoma", Font.PLAIN, 15));
lblEmployeeDatabase.setBounds(157, 7, 193, 25);
panel.add(lblEmployeeDatabase);
JPanel panel_1 = new JPanel();
panel_1.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel_1.setBounds(10, 61, 464, 230);
frame.getContentPane().add(panel_1);
panel_1.setLayout(null);
JLabel jlblEmpName = new JLabel("Employee Name");
jlblEmpName.setBounds(10, 11, 110, 14);
panel_1.add(jlblEmpName);
jtxtName = new JTextField();
jtxtName.setBounds(114, 8, 120, 20);
panel_1.add(jtxtName);
jtxtName.setColumns(10);
JLabel jlblEmpAge = new JLabel("Employee Age");
jlblEmpAge.setBounds(10, 52, 110, 14);
panel_1.add(jlblEmpAge);
jtxtAge = new JTextField();
jtxtAge.setColumns(10);
jtxtAge.setBounds(114, 49, 120, 20);
panel_1.add(jtxtAge);
JLabel jlblEmpType = new JLabel("Employee Type");
jlblEmpType.setBounds(10, 95, 110, 14);
panel_1.add(jlblEmpType);
JRadioButton jrdbuttonFullTime = new JRadioButton("Full Time");
JRadioButton jrdbtnContract = new JRadioButton("Contract ");
JLabel jlblEmpHour = new JLabel("Hourly Rate");
jlblEmpHour.setBounds(5, 121, 66, 14);
ButtonGroup group = new ButtonGroup();
JLabel jlblEmpSal = new JLabel("Salary");
jlblEmpSal.setBounds(114, 121, 66, 14);
JLabel jlblEmpWork = new JLabel("Hours Worked");
jlblEmpWork.setBounds(150, 120, 86, 24);
jtxtSal = new JTextField();
jtxtSal.setColumns(10);
jtxtSal.setBounds(164, 121, 109, 23);
jtxtHour_Pay = new JTextField();
jtxtHour_Pay.setColumns(10);
jtxtHour_Pay.setBounds(75, 121, 59, 23);
jtxtHour_Worked = new JTextField();
jtxtHour_Worked.setColumns(10);
jtxtHour_Worked.setBounds(243, 121, 109, 23);
group.add(jrdbuttonFullTime);
group.add(jrdbtnContract);
panel_1.add(jlblEmpSal);
panel_1.add(jtxtSal);
panel_1.add(jlblEmpHour);
panel_1.add(jtxtHour_Pay);
panel_1.add(jlblEmpWork);
panel_1.add(jtxtHour_Worked);
ActionListener myAction = new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
jlblEmpHour.setVisible(jrdbtnContract.isSelected());
jtxtHour_Pay.setVisible(jrdbtnContract.isSelected());
jtxtHour_Worked.setVisible(jrdbtnContract.isSelected());
jlblEmpWork.setVisible(jrdbtnContract.isSelected());
jlblEmpSal.setVisible(jrdbuttonFullTime.isSelected());
jtxtSal.setVisible(jrdbuttonFullTime.isSelected());
}
};
myAction.actionPerformed(null); // to initialize labels first
jrdbuttonFullTime.addActionListener(myAction);
jrdbtnContract.addActionListener(myAction);
jrdbtnContract.setBounds(218, 91, 109, 23);
jrdbuttonFullTime.setBounds(113, 91, 109, 23);
panel_1.add(jrdbuttonFullTime);
panel_1.add(jrdbtnContract);
}
}

I've revised your code a little. This should get you going on the right path:
public class Emp4 {
private JFrame frame;
private JTextField jtxtName;
private JTextField jtxtAge;
private JTextField jtxtSal;
private JTextField jtxtHour_Pay;
private JTextField jtxtHour_Worked;
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable() {
public void run()
{
try {
Emp4 window = new Emp4();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Emp4()
{
initialize();
}
private void initialize()
{
frame = new JFrame();
frame.setBounds(0, 0, 1000, 800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JPanel panel = new JPanel();
panel.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel.setBounds(30, 11, 414, 36);
frame.getContentPane().add(panel);
panel.setLayout(null);
JLabel lblEmployeeDatabase = new JLabel("Employee Database");
lblEmployeeDatabase.setFont(new Font("Tahoma", Font.PLAIN, 15));
lblEmployeeDatabase.setBounds(157, 7, 193, 25);
panel.add(lblEmployeeDatabase);
JPanel panel_1 = new JPanel();
panel_1.setBorder(new LineBorder(new Color(0, 0, 0), 3));
panel_1.setBounds(10, 61, 464, 230);
frame.getContentPane().add(panel_1);
panel_1.setLayout(null);
JLabel jlblEmpName = new JLabel("Employee Name");
jlblEmpName.setBounds(10, 11, 110, 14);
panel_1.add(jlblEmpName);
jtxtName = new JTextField();
jtxtName.setBounds(114, 8, 120, 20);
panel_1.add(jtxtName);
jtxtName.setColumns(10);
JLabel jlblEmpAge = new JLabel("Employee Age");
jlblEmpAge.setBounds(10, 52, 110, 14);
panel_1.add(jlblEmpAge);
jtxtAge = new JTextField();
jtxtAge.setColumns(10);
jtxtAge.setBounds(114, 49, 120, 20);
panel_1.add(jtxtAge);
JLabel jlblEmpType = new JLabel("Employee Type");
jlblEmpType.setBounds(10, 95, 110, 14);
panel_1.add(jlblEmpType);
JRadioButton jrdbuttonFullTime = new JRadioButton("Full Time");
JRadioButton jrdbtnContract = new JRadioButton("Contract ");
JLabel jlblEmpHour = new JLabel("Hourly Rate");
jlblEmpHour.setBounds(5, 121, 66, 14);
ButtonGroup group = new ButtonGroup();
JLabel jlblEmpSal = new JLabel("Salary");
jlblEmpSal.setBounds(114, 121, 66, 14);
JLabel jlblEmpWork = new JLabel("Hours Worked");
jlblEmpWork.setBounds(150, 120, 86, 24);
jtxtSal = new JTextField();
jtxtSal.setColumns(10);
jtxtSal.setBounds(164, 121, 109, 23);
jtxtHour_Pay = new JTextField();
jtxtHour_Pay.setColumns(10);
jtxtHour_Pay.setBounds(75, 121, 59, 23);
jtxtHour_Worked = new JTextField();
jtxtHour_Worked.setColumns(10);
jtxtHour_Worked.setBounds(243, 121, 109, 23);
//*******************************************************************
// Add all your salary fields here, not in ActionListeners
// Start them off invisible
//*******************************************************************
jlblEmpSal.setVisible(false);
panel_1.add(jlblEmpSal);
jtxtSal.setVisible(false);
panel_1.add(jtxtSal);
panel_1.add(jlblEmpHour);
jlblEmpHour.setVisible(false);
panel_1.add(jtxtHour_Pay);
jtxtHour_Pay.setVisible(false);
panel_1.add(jlblEmpWork);
jlblEmpWork.setVisible(false);
jtxtHour_Worked.setVisible(false);
panel_1.add(jtxtHour_Worked);
group.add(jrdbuttonFullTime);
group.add(jrdbtnContract);
jrdbuttonFullTime.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
if (jrdbuttonFullTime.isSelected()) {
//jrdbtnContract.setSelected(false);
// ****************************************************
// In ActionListeners for radiobuttons, hide the fields you
// don't want to see, make visible the ones you do want to see
// ****************************************************
jlblEmpSal.setVisible(true);
jtxtSal.setVisible(true);
jlblEmpHour.setVisible(false);
jtxtHour_Pay.setVisible(false);
jtxtHour_Worked.setVisible(false);
jlblEmpWork.setVisible(false);
}
}
});
jrdbuttonFullTime.setBounds(113, 91, 109, 23);
panel_1.add(jrdbuttonFullTime);
jrdbtnContract.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
if (jrdbtnContract.isSelected()) {
//jrdbuttonFullTime.setSelected(false);
// ****************************************************
// In ActionListeners for radiobuttons, hide the fields you
// don't want to see, make visible the ones you do want to see
// ****************************************************
jlblEmpHour.setVisible(true);
jtxtHour_Pay.setVisible(true);
jlblEmpWork.setVisible(true);
jtxtHour_Worked.setVisible(true);
jlblEmpSal.setVisible(false);
jtxtSal.setVisible(false);
}
}
});
jrdbtnContract.setBounds(218, 91, 109, 23);
panel_1.add(jrdbtnContract);
}
}
Your radio buttons start off both unchecked, so you see no salary detail initially. When you click one or the other, the corresponding details appear.

In which case(which radiobutton checked ?) you want to show which controls?

how to retrieve data from mysql using text entered in java swing text box when I press enter button?

Following is my Java Swing applet code in which I have first field as employee code and text box for entering employee code, I want to retrieve data of employee from MySql database when I will enter employee code in text box after hitting Enter key on keyboard and set retrieve data in respective text boxes and combo boxes. and same to embed it in JSP as applet.
Please help.
Here is my code:
import javax.swing.*;
import java.applet.*;
import java.awt.*;
public class App extends JApplet{
public void start()
{
JFrame frame = new JFrame("Form");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
JPanel panel = new JPanel();
JLabel label1 = new JLabel("");
JTextField field = new JTextField(20);
JButton but_per = new JButton("Personalize");
//JButton button2 = new JButton("Cancel");
Container c;
c=frame.getContentPane();
c.setLayout(null);
JLabel name=new JLabel("Name :");
JLabel compcode=new JLabel("Company Code :");
JLabel cardno=new JLabel("Card Number: ");
JLabel cardtype=new JLabel("Card Type :");
JLabel pin=new JLabel("Pin :");
JLabel bldgrp=new JLabel("Blood Group :");
JLabel empcode=new JLabel("Employee Code :");
JLabel dob=new JLabel("DOB :");
JLabel valupto=new JLabel("Valid Upto :");
JLabel jdate=new JLabel("Joining Date :");
JLabel dept=new JLabel("Department :");
JLabel uid=new JLabel("UID :");
String data []={"A","AB","B","B +","A +","O +","O -"};
JTextField nametxt=new JTextField(10);
JComboBox compcodetxt=new JComboBox();
JTextField cardnumtxt=new JTextField(10);
JTextField cardtypetxt=new JTextField(10);
JTextField pintxt=new JTextField(10);
JComboBox bldgrptxt=new JComboBox(data);
bldgrptxt.setSelectedIndex(5);
JTextField empcodetxt=new JTextField(10);
JTextField dobtxt=new JTextField(10);
JTextField valuptotxt=new JTextField(10);
JTextField jdatetxt=new JTextField(10);
JTextField depttxt=new JTextField(10);
JTextField uidtxt=new JTextField(10);
empcode.setBounds(10, 10, 100, 25);
empcodetxt.setBounds(110, 10, 100, 25);
name.setBounds(10, 40, 100, 25);
nametxt.setBounds(110, 40, 100, 25);
compcode.setBounds(10, 70, 100, 25);
compcodetxt.setBounds(110, 70, 100, 25);
cardno.setBounds(10, 100, 100, 25);
cardnumtxt.setBounds(110, 100, 100, 25);
//pin.setBounds(10, 110, 100, 25);
//pintxt.setBounds(110, 110, 100, 25);
bldgrp.setBounds(10, 130, 100, 25);
bldgrptxt.setBounds(110, 130, 100, 25);
dob.setBounds(10, 160, 100, 25);
dobtxt.setBounds(110, 160, 100, 25);
valupto.setBounds(10, 190, 100, 25);
valuptotxt.setBounds(110, 190, 100, 25);
jdate.setBounds(10, 220, 100, 25);
jdatetxt.setBounds(110, 220, 100, 25);
dept.setBounds(10, 250, 100, 25);
depttxt.setBounds(110, 250, 100, 25);
uid.setBounds(10, 280, 100, 25);
uidtxt.setBounds(110, 280, 100, 25);
but_per.setBounds(10, 340, 120, 25);
//button2.setBounds(10, 70, 75, 25);
c.add(name); c.add(nametxt);
c.add(compcode); c.add(compcodetxt);
c.add(cardno); c.add(cardnumtxt);
c.add(pin); c.add(pintxt);
c.add(bldgrp); c.add(bldgrptxt);
c.add(empcode); c.add(empcodetxt);
c.add(dob); c.add(dobtxt);
c.add(valupto); c.add(valuptotxt);
c.add(jdate); c.add(jdatetxt);
c.add(dept); c.add(depttxt);
c.add(uid); c.add(uidtxt);
c.add(but_per);
//panel.add(button1);
//panel.add(button2);
//frame.add(panel);
frame.setSize(350,400);
//frame.pack();
frame.setVisible(true);
}
public void stop(){}
}

In your ActionListener for that button retrieve the text of the textfield using textfield.getText() and then use this value to query database. I'm assuming that you know well how to query database.

Wait! you haven't implemented ActionListener!
Do the following:
but_per.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent ae) {
/// write your code here!
String a= field.getText();
System.out.print(a);
///or DB code
}
});
Here is a LINK if you aren't familiar with Action Listener
UPDATE:
If you want all processing after a key press, you have to implement keybord events,
you can find a tutorial link here

This source is the closest workable version of your code I could produce, but it still has many serious problems.
Using the start() method incorrectly. The method will be called each time the browser is restored from minimized.
Use of a null layout and setBounds().
A free floating, non modal GUI element will cause focus problems..
Having said that, type a number in the employee code field and hit enter to see something like (screenshot shortened vertically)..
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/* <applet code=App width=400 height=600></applet> */
public class App extends JApplet {
public void start() {
final JFrame frame = new JFrame("Form");
ActionListener doDB = new ActionListener() {
#Override
public void actionPerformed(ActionEvent ae) {
JOptionPane.showMessageDialog(frame, "Query the DB off the EDT!");
}
};
// This cannot be done in a sand-boxed applet
//frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
// hides the bottom field..
//frame.setResizable(false);
JPanel panel = new JPanel();
JLabel label1 = new JLabel("");
JTextField field = new JTextField(20);
JButton but_per = new JButton("Personalize");
Container c;
c = frame.getContentPane();
c.setLayout(null);
JLabel name = new JLabel("Name :");
JLabel compcode = new JLabel("Company Code :");
JLabel cardno = new JLabel("Card Number: ");
JLabel cardtype = new JLabel("Card Type :");
JLabel pin = new JLabel("Pin :");
JLabel bldgrp = new JLabel("Blood Group :");
JLabel empcode = new JLabel("Employee Code :");
JLabel dob = new JLabel("DOB :");
JLabel valupto = new JLabel("Valid Upto :");
JLabel jdate = new JLabel("Joining Date :");
JLabel dept = new JLabel("Department :");
JLabel uid = new JLabel("UID :");
String data[] = {"A", "AB", "B", "B +", "A +", "O +", "O -"};
JTextField nametxt = new JTextField(10);
JComboBox compcodetxt = new JComboBox();
JTextField cardnumtxt = new JTextField(10);
JTextField cardtypetxt = new JTextField(10);
JTextField pintxt = new JTextField(10);
JComboBox bldgrptxt = new JComboBox(data);
bldgrptxt.setSelectedIndex(5);
JTextField empcodetxt = new JTextField(10);
empcodetxt.addActionListener(doDB);
JTextField dobtxt = new JTextField(10);
JTextField valuptotxt = new JTextField(10);
JTextField jdatetxt = new JTextField(10);
JTextField depttxt = new JTextField(10);
JTextField uidtxt = new JTextField(10);
empcode.setBounds(10, 10, 100, 25);
empcodetxt.setBounds(110, 10, 100, 25);
name.setBounds(10, 40, 100, 25);
nametxt.setBounds(110, 40, 100, 25);
compcode.setBounds(10, 70, 100, 25);
compcodetxt.setBounds(110, 70, 100, 25);
cardno.setBounds(10, 100, 100, 25);
cardnumtxt.setBounds(110, 100, 100, 25);
bldgrp.setBounds(10, 130, 100, 25);
bldgrptxt.setBounds(110, 130, 100, 25);
dob.setBounds(10, 160, 100, 25);
dobtxt.setBounds(110, 160, 100, 25);
valupto.setBounds(10, 190, 100, 25);
valuptotxt.setBounds(110, 190, 100, 25);
jdate.setBounds(10, 220, 100, 25);
jdatetxt.setBounds(110, 220, 100, 25);
dept.setBounds(10, 250, 100, 25);
depttxt.setBounds(110, 250, 100, 25);
uid.setBounds(10, 280, 100, 25);
uidtxt.setBounds(110, 280, 100, 25);
but_per.setBounds(10, 340, 120, 25);
c.add(name);
c.add(nametxt);
c.add(compcode);
c.add(compcodetxt);
c.add(cardno);
c.add(cardnumtxt);
c.add(pin);
c.add(pintxt);
c.add(bldgrp);
c.add(bldgrptxt);
c.add(empcode);
c.add(empcodetxt);
c.add(dob);
c.add(dobtxt);
c.add(valupto);
c.add(valuptotxt);
c.add(jdate);
c.add(jdatetxt);
c.add(dept);
c.add(depttxt);
c.add(uid);
c.add(uidtxt);
c.add(but_per);
frame.setSize(350, 400);
frame.setVisible(true);
}
public void stop() {
}
}

why isn't my Jlabels or Jpanels showing?

i've added a title to my Jframe, and now its blocked everything else, what have I done??
public class addressbook
{
public JFrame frame;
public JButton btnadd, btndelete, btnsave, btnprev, btnnext;
public JPanel panel, pTitle;
public JTextField txtname, txtaddress, txthomeno, txtmobno;
public JLabel JlbName , JlbHtn, JlbMtn, JlbAddress, lblTitle;
public addressbook() {
//sets window
frame = new JFrame();
frame.setTitle("Address Book");
frame.setSize(450, 580);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//sets up panel
panel = new JPanel();
panel.setLayout(null);
frame.getContentPane().add(panel);
pTitle = new JPanel();
pTitle.setLayout(new FlowLayout(FlowLayout.CENTER));
lblTitle = new JLabel("Bournemouth University Address Book");
pTitle.add(lblTitle);
frame.add(pTitle);
//Labels
JlbName = new JLabel("Name:");
JlbName.setBounds(10, 50, 100, 20);
panel.add(JlbName);
JlbHtn = new JLabel("Home Number:");
JlbHtn.setBounds(10, 90, 150, 20);
panel.add(JlbHtn);
JlbMtn = new JLabel("Mobile Number:");
JlbMtn.setBounds(10, 130, 200, 20);
panel.add(JlbMtn);
JlbAddress = new JLabel("Address:");
JlbAddress.setBounds(10, 170, 250, 20);
panel.add(JlbAddress);
//Text Fields
txtname = new JTextField("Name");
txtname.setBounds(120, 50, 200, 20);
panel.add(txtname);
txthomeno = new JTextField("Home Number");
txthomeno.setBounds(120, 90, 200, 20);
panel.add(txthomeno);
txtmobno = new JTextField("Mob Number");
txtmobno.setBounds(120, 130, 200, 20);
panel.add(txtmobno);
txtaddress = new JTextField("Address");
txtaddress.setBounds(120, 170, 250, 20);
panel.add(txtaddress);
frame.setVisible(true);
//Buttons && Button Functions
btnadd = new JButton("Add", new ImageIcon("../files/add.png"));
btnadd.setBounds(180, 350, 100, 50);
btnadd.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
}});
panel.add(btnadd);
btndelete = new JButton("Delete", new ImageIcon("../files/delete2.png"));
btndelete.setBounds(180, 450, 100, 50);
btndelete.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
}});
panel.add(btndelete);
btnsave = new JButton("Save", new ImageIcon("../files/save.png"));
btnsave.setBounds(180, 400, 100, 50);
btnsave.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
}});
panel.add(btnsave);
btnprev = new JButton(new ImageIcon("../files/left.png"));
btnprev.setBounds(180, 300, 100, 50);
btnprev.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
}});
panel.add(btnprev);
btnnext = new JButton(new ImageIcon("../files/right.png"));
btnnext.setBounds(180, 250, 100, 50);
btnnext.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
}});
panel.add(btnnext);
frame.setVisible(true);
panel.setVisible(true);
}

If you are not using a LayoutManager on purpose (and it looks that way) make sure that you set a location and a size for your component.
pTitle.setLocation(100, 100);
pTitle.setSize(100, 100);
But you should rather remove this line
panel.setLayout(null);
and replace it with something like this:
panel.setLayout(new BorderLayout());
Also, don’t forget to add your pTitle to panel.

Add the label to the panel, don't create a new Panel for it
lblTitle = new JLabel("Bournemouth University Address Book");
lblTitle.setBounds(100, 0, 400, 20);
panel.add(lblTitle);

Try adding your JPanel pTitle to frame.getContentPane() or to the JPanel panel
Edit
Instead of
frame.add(pTitle);
do:
frame.getContentPanel().add(pTitle);
If this very quick fix doesn't help, stick with the answer you've already accepted.

You have to set a LayoutManager for your frame:
frame = new JFrame();
frame.getContentPane().setLayout(FooLayout());

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