Hi Smriti,
I am giving you an example program.I have tried to reproduce your problem.This program is working fine on my system. With this i hope all your problems come to an end.
Wishing you all Success.
With regards ,
Kiran
import java.awt.*;
import java.awt.event.*;
import java.text.*;// NEW
import java.util.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.text.*;// NEW
import dl.*;
public class TextDemo extends JFrame {
protected JFormattedTextField m_firstTxt;// NEW
protected JFormattedTextField m_lastTxt;
protected JFormattedTextField m_phoneTxt;
protected JFormattedTextField m_faxTxt;
protected JPasswordField m_passwordTxt;
protected JTextArea m_commentsTxt;// NEW
protected JLabel m_status;
public static final
String PHONE_PATTERN = "(###)###-####";
public TextDemo() {
super("Text Components Demo");
Font monospaced = new Font("Monospaced", Font.PLAIN, 12);
JPanel pp = new JPanel(new BorderLayout());
JPanel p = new JPanel(new DialogLayout2());
p.setBorder(new EmptyBorder(10, 10, 10, 10));
p.add(new JLabel("First name:"));
m_firstTxt = new JFormattedTextField(
new NameFormat());// NEW
m_firstTxt.setInputVerifier(new TextVerifier(
"First name cannot be empty"));
m_firstTxt.setColumns(12);
p.add(m_firstTxt);
p.add(new JLabel("Last name:"));
m_lastTxt = new JFormattedTextField(
new NameFormat());// NEW
m_lastTxt.setColumns(12);
p.add(m_lastTxt);
p.add(new JLabel("Phone number:"));// NEW
MaskFormatter formatter = null;
try {
formatter = new MaskFormatter(PHONE_PATTERN);
}
catch (ParseException pex) {
pex.printStackTrace();
}
m_phoneTxt = new JFormattedTextField(formatter);
m_phoneTxt.setColumns(12);
m_phoneTxt.setInputVerifier(new FTFVerifier(
"Phone format is "+PHONE_PATTERN));
p.add(m_phoneTxt);
p.add(new JLabel("Fax number:"));// NEW
m_faxTxt = new JFormattedTextField(
new PhoneFormat());
m_faxTxt.setColumns(12);
m_faxTxt.setInputVerifier(new FTFVerifier(
"Fax format is "+PHONE_PATTERN));
p.add(m_faxTxt);
p.add(new JLabel("Login password:"));
m_passwordTxt = new JPasswordField(20);
m_passwordTxt.setFont(monospaced);
m_passwordTxt.setInputVerifier(new TextVerifier(
"Login password cannot be empty"));
p.add(m_passwordTxt);
p.setBorder(new CompoundBorder(
new TitledBorder(new EtchedBorder(), "Personal Data"),
new EmptyBorder(1, 5, 3, 5))
);
pp.add(p, BorderLayout.NORTH);
m_commentsTxt = new JTextArea("", 4, 30);
m_commentsTxt.setFont(monospaced);
m_commentsTxt.setLineWrap(true);
m_commentsTxt.setWrapStyleWord(true);
p = new JPanel(new BorderLayout());
p.add(new JScrollPane(m_commentsTxt));
p.setBorder(new CompoundBorder(
new TitledBorder(new EtchedBorder(), "Comments"),
new EmptyBorder(3, 5, 3, 5))
);
pp.add(p, BorderLayout.CENTER);
m_status = new JLabel("Input data");
m_status.setBorder(new CompoundBorder(
new EmptyBorder(2, 2, 2, 2),
new SoftBevelBorder(SoftBevelBorder.LOWERED)));
pp.add(m_status, BorderLayout.SOUTH);
Dimension d = m_status.getPreferredSize();
m_status.setPreferredSize(new Dimension(150, d.height));
pp.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(pp);
pack();
}
public static void main(String[] args) {
JFrame frame = new TextDemo();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
/**
* Format which capitalize all words
*/
class NameFormat extends Format {
public StringBuffer format(Object obj, StringBuffer toAppendTo,
FieldPosition fieldPosition) {
fieldPosition.setBeginIndex(toAppendTo.length());
String str = obj.toString();
char prevCh = ' ';
for (int k=0; k<str.length(); k++) {
char nextCh = str.charAt(k);
if (Character.isLetter(nextCh) && prevCh == ' ')
nextCh = Character.toTitleCase(nextCh);
toAppendTo.append(nextCh);
prevCh = nextCh;
}
fieldPosition.setEndIndex(toAppendTo.length());
return toAppendTo;
}
public Object parseObject(String text, ParsePosition pos) {
pos.setIndex(pos.getIndex()+text.length());
return text;
}
}
/**
* Format phone numbers
*/
class PhoneFormat extends Format {
public StringBuffer format(Object obj, StringBuffer toAppendTo,
FieldPosition fieldPosition) {
fieldPosition.setBeginIndex(toAppendTo.length());
// Gen digits of the number
String str = obj.toString();
StringBuffer number = new StringBuffer();
for (int k=0; k<str.length(); k++) {
char nextCh = str.charAt(k);
if (Character.isDigit(nextCh))
number.append(nextCh);
else if (Character.isLetter(nextCh)) {
nextCh = Character.toUpperCase(nextCh);
switch (nextCh) {
case 'A':
case 'B':
case 'C':
number.append('2');
break;
case 'D':
case 'E':
case 'F':
number.append('3');
break;
case 'G':
case 'H':
case 'I':
number.append('4');
break;
case 'J':
case 'K':
case 'L':
number.append('5');
break;
case 'M':
case 'N':
case 'O':
number.append('6');
break;
case 'P':
case 'Q':
case 'R':
case 'S':
number.append('7');
break;
case 'T':
case 'U':
case 'V':
number.append('8');
break;
case 'W':
case 'X':
case 'Y':
case 'Z':
number.append('9');
break;
}
}
}
// Format digits according to the
pattern int index = 0;
for (int k=0; k<PHONE_PATTERN.length(); k++) {
char ch = PHONE_PATTERN.charAt(k);
if (ch == '#') {
if (index >= number.length())
break;
toAppendTo.append(number.charAt(index++));
}
else
toAppendTo.append(ch);
}
fieldPosition.setEndIndex(toAppendTo.length());
return toAppendTo;
}
public Object parseObject(String text, ParsePosition pos) {
pos.setIndex(pos.getIndex()+text.length());
return text;
}
}
/**
* Verify input to JTextField
*/
class TextVerifier extends InputVerifier {
private String m_errMsg;
public TextVerifier(String errMsg) {
m_errMsg = errMsg;
}
public boolean verify(JComponent input) {
m_status.setText("");
if (!(input instanceof JTextField))
return true;
JTextField txt = (JTextField)input;
String str = txt.getText();
if (str.length() == 0) {
m_status.setText(m_errMsg);
return false;
}
return true;
}
}
/**
* Verify input to JFormattedTextField
*/
class FTFVerifier extends InputVerifier {
private String m_errMsg;
public FTFVerifier(String errMsg) {
m_errMsg = errMsg;
}
public boolean verify(JComponent input) {
m_status.setText("");
if (!(input instanceof JFormattedTextField))
return true;
JFormattedTextField ftf = (JFormattedTextField)input;
JFormattedTextField.AbstractFormatter formatter =
ftf.getFormatter();
if (formatter == null)
return true;
try {
formatter.stringToValue(ftf.getText());
return true;
}
catch (ParseException pe) {
m_status.setText(m_errMsg);
return false;
}
}
}
}
