Need help with regex please

[CodeGrommet]

I'm trying to validate a phone number value. I have passed the value
to my constructor as a String type because I would like to catch the
leading zero in the number. I want to iterate through the String
phoneNum and confirm that only [0-9] were entered as characters of
phoneNum. Below is my code attempt which fails:

phoneNum = phoneNum.trim();
Pattern p = Pattern.compile("\\d");
boolean found = p.matcher(phoneNum).lookingAt();
if (!found){
System.out.println("Error in contact phone number");
}
else{
this.phoneNum = phoneNum;
System.out.println("Phone number was successfully
assigned");
}

Could anyone post code/ideas/principles that could make this idea
work, please?

Thanks,
Rick

 

[-Rick-]

I'm trying to validate a phone number value. I have passed the value
to my constructor as a String type because I would like to catch the
leading zero in the number. I want toiteratethrough the String
phoneNum and confirm that only [0-9] were entered as characters of
phoneNum. Below is my code attempt which fails:

phoneNum = phoneNum.trim();
Pattern p = Pattern.compile("\\d");
boolean found = p.matcher(phoneNum).lookingAt();
if (!found){
System.out.println("Error in contact phone number");
}
else{
this.phoneNum = phoneNum;
System.out.println("Phone number was successfully
assigned");
}

Could anyone post code/ideas/principles that could make this idea
work, please?

Thanks,
Rick

//****************** Solved! ****************************
//validate phone number input
phoneNum = phoneNum.trim();
Pattern p = Pattern.compile("[0-9]*");
boolean found = p.matcher(phoneNum).matches();
if (!found){
System.out.println("Error in contact phone number");
}
else{
this.phoneNum = phoneNum;
System.out.println("Phone number was successfully
assigned");
}

this.name = name;

 

[Jeff Higgins]

I'm trying to validate a phone number value. I have passed the value
to my constructor as a String type because I would like to catch the
leading zero in the number. I want to iterate through the String
phoneNum and confirm that only [0-9] were entered as characters of
phoneNum. Below is my code attempt which fails:

phoneNum = phoneNum.trim();
Pattern p = Pattern.compile("\\d");
boolean found = p.matcher(phoneNum).lookingAt();
if (!found){
System.out.println("Error in contact phone number");
}
else{
this.phoneNum = phoneNum;
System.out.println("Phone number was successfully
assigned");
}

Could anyone post code/ideas/principles that could make this idea
work, please?

using: telephone number format:
<http://en.wikipedia.org/wiki/E.164>

extend: java.text.Format
<http://java.sun.com/javase/6/docs/api/java/text/Format.html>

 

[Jeff Higgins]

using: telephone number format:
<http://en.wikipedia.org/wiki/E.164>

extend: java.text.Format
<http://java.sun.com/javase/6/docs/api/java/text/Format.html>

Or javax.swing.text.MaskFormatter,
depending on your use case.

<http://java.sun.com/javase/6/docs/api/javax/swing/text/MaskFormatter.html>

 

[Jeff Higgins]

Or javax.swing.text.MaskFormatter,
depending on your use case.

<http://java.sun.com/javase/6/docs/api/javax/swing/text/MaskFormatter.html>

Formatting Basics with JFormattedTextField by John Zukowski:
<http://java.sun.com/developer/onlineTraining/new2java/supplements/2005/May05.html#1>