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StringTokenizer

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Join Date: Oct 2004

Posts: 2

Reputation: sunsol is an unknown quantity at this point

Solved Threads: 0

sunsol

Offline

Newbie Poster

StringTokenizer

Oct 5th, 2004

I need some help!! I need to have a user input a phone number and then spit it out using StringTokenizer. This is what I have so far:

import java.util.*;
import java.io.*;
class Prob8_2
{
public static void main (String []args)throws IOException
{
BufferedReader stdin = new BufferedReader (new InputStreamReader(System.in));

String phonen = null;
String token = null;

do
{
//user enters phone number
System.out.print( "Enter phone number: " );
System.out.flush();
phonen = stdin.readLine();
//some error checking
if ( phonen == null || phonen.length() != 12)
{
System.out.println( "Please enter phone number in this format \"555-555-5555\"." );
System.out.flush();
}
}

// This is where I'm lost....It has to be printed out in the similar to the
// following:
// 555 is the area code
// 555 is the exchange
// 5555 is the extension
while (phonen == null || phonen.length() != 12 );
{
tokenizer = new StringTokenizer(phonen, "-");
}
System.out.print(getAreaCode(tokenizer) + " is the area code");
System.out.print(getExchange(tokenizer) + " is the exchange");
System.out.print(getExtension(tokenizer) + " is the extension");

•

Join Date: Aug 2004

Posts: 153

Reputation: cosi is an unknown quantity at this point

Solved Threads: 1

cosi

Offline

Junior Poster

Re: StringTokenizer

Oct 6th, 2004

Check the Java Almanac entry for StringTokenizer---it is very useful!

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
  String aString = "555-555-55555";
  StringTokenizer parser = new StringTokenizer(aString, '-');
 
  if (aString.countTokens() != 3) {
     // error input is invalid
  }  
 
  String areaCode = parser.nextToken();  // area code
  String exchange = parser.nextToken();
  String extension = parser.nextToken();
  String aString = "555-555-55555";
  StringTokenizer parser = new StringTokenizer(aString, '-');

  if (aString.countTokens() != 3) {
     // error input is invalid
  }  

  String areaCode = parser.nextToken();  // area code
  String exchange = parser.nextToken();
  String extension = parser.nextToken();

•

Originally Posted by sunsol

I need some help!! I need to have a user input a phone number and then spit it out using StringTokenizer. This is what I have so far:

import java.util.*;
import java.io.*;
class Prob8_2
{
public static void main (String []args)throws IOException
{
BufferedReader stdin = new BufferedReader (new InputStreamReader(System.in));

String phonen = null;
String token = null;

do
{
//user enters phone number
System.out.print( "Enter phone number: " );
System.out.flush();
phonen = stdin.readLine();
//some error checking
if ( phonen == null || phonen.length() != 12)
{
System.out.println( "Please enter phone number in this format \"555-555-5555\"." );
System.out.flush();
}
}

// This is where I'm lost....It has to be printed out in the similar to the
// following:
// 555 is the area code
// 555 is the exchange
// 5555 is the extension
while (phonen == null || phonen.length() != 12 );
{
tokenizer = new StringTokenizer(phonen, "-");
}
System.out.print(getAreaCode(tokenizer) + " is the area code");
System.out.print(getExchange(tokenizer) + " is the exchange");
System.out.print(getExtension(tokenizer) + " is the extension");