Monday, June 10, 2013

Java Phone Number Dissection Error - Java | Dream.In.Code


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    1 Replies - 37 Views - Last Post: Yesterday, 05:45 PM Rate Topic: -----

    #1 jcamana10 ?Icon User is offline

    Reputation: 0

    • Posts: 1
    • Joined: Yesterday, 05:12 PM

    Posted Yesterday, 05:28 PM

    I am having some issues completing an assignment for my programming class. This deals with phone number dissection. I have most of the work done but I cannot seem to make the breakthrough on what is wrong with my code. I keep getting the same error: ".class" expected and ";" expected.

    I have consulted with my prof and he gave me a hint on what is wrong however, I have no clue what is is talking about. Can anyone decipher? Here's what he said, "You need to break the number apart inside the constructor."

    Below is my program:

    /***************************************************************************************
    * JCDissector.java
    * JR Camana
    *
    * This program dissects a phone number into its individual pieces.
    ****************************************************************************************/

    public class JCDissector
    {
    String colonSeparated; //string holding the entire phone number separated by colons
    String countryCode; //country code of a phone number
    int areaCode; //area code of a phone number
    int prefix; //prefix numbers in a phone number
    int number; //last four digits of a phone number

    public JCDissector(String colonSeparated)
    {
    this.colonSeparated = colonSeparated;
    } //end constructor

    public String getPhoneNumber(int i)
    {
    return this.colonSeparated;
    } //end getPhoneNumber

    public String getPhoneNumber(1)
    {
    countryCode = colonSeparated.subString(0,colonSeparated.indexOf(':'));
    }

    public String getPhoneNumber(2)
    {
    String tempAreaCode = colonSeparated.subString(countryCode + 1,colonSeparated.indexOf(':'));
    areaCode = Integer.parseInt(tempAreaCode);
    }

    public String getPhoneNumber(3)
    {
    String tempPrefix = colonSeparated.subString(areaCode + 1,colonSeparated.indexOf(':'));
    prefix = Integer.parseInt(tempPrefix);
    }

    public String getPhoneNumber(4)
    {
    String tempNumber = colonSeparated.subString(colonSeparated.lastIndexOf(':'));
    number = Integer.parseInt(tempNumber);
    }

    }//end JCDissector

    /***************************************************************************************
    * JRCamanaProg1.java
    * JR Camana
    *
    * This program is the Phone class for the driver JRCamanaProg1.java file.
    ****************************************************************************************/

    public class JRCamanaProg1
    {
    public static void main(String[] args)
    {
    JCDissector phone = new JCDissector("1:919:882:5000");
    System.out.println(phone.getPhoneNumber(int i));
    System.out.println(phone.getPhoneNumber(4));
    System.out.println(phone.getPhoneNumber(1));
    System.out.println(phone.getPhoneNumber(3));
    System.out.println(phone.getPhoneNumber(2));
    }
    }// end main


    Is This A Good Question/Topic? 0

    Replies To: Java Phone Number Dissection Error

    #2 Hqtitan ?Icon User is offline

    Reputation: 4

    • Posts: 31
    • Joined: 28-August 10

    Re: Java Phone Number Dissection Error

    Posted Yesterday, 05:45 PM

    Rather than trying to pull the section in the method to get that section, you should do the dissection and set your phone number section variables when the object is constructed. I don't think that this has much to do with the errors you are receiving, but it could prevent errors further down the line.

    With the way you have this set up now, the instance variables countryCode, areaCode[/li], prefix, and [il]number remain undefined until the corresponding method is called. You can't/shouldn't control what order the methods will be called, because a different user might not know exactly how this has been set up, and won't use it the same way that you are. You're also running the dissection every single time the method is called. Rather than run it every time, run it once in the constructor and store the values in the variables.

    You will also get problems with not returning anything in your methods, since you have specified that they should return a String.


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    Source: http://www.dreamincode.net/forums/topic/322725-java-phone-number-dissection-error/

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