Anybody please help?? :(

I want to write a java code to extract phone number from a given text file which contain other data like name, address and other details. i only need to extract the phone no: from such a file. anybody please help me to do that... as soon as possible.:=(::=(::=(:
i am new to java.:(-::(-::(-:

i have gone through the program http://www.java-forums.org/new-java/...nfo-array.html

but my text file contain character along with phone no:
and i think that slight modifications in this program will do.. i'm not sure.. there might be some other simple ways

anybody please help....

What is the textual format of a phone number?

kind regards,

Jos

What is the format of the text file? It might help if you posted a few sample lines from the file into your response, surrounded by "CODE" markup. (Use the '#' icon above the text box.)

Yes it is simple... or maybe the logic is simple for me. This is what I made for an old Java Program I used to get information about doctors from a text file.

Code:

---

public void collectInfo(String path) {
//This will hold the phone's value after the fact.
String phone;
try {
        //Create InputStream Object
        InputStream in = DoctorProfileApp.class.getResourceAsStream(path);
        //Create BufferedReader Object
        BufferedReader buf = new BufferedReader(new InputStreamReader(in));
        //Create string to hold text that comes from BufferedReader
        String text;
        //Read each line
        while((text = buf.readLine()) != null) {
                //int findPhone tells you where the line that has "PhoneNumber=" starts
                int findPhone = text.indexOf("PhoneNumber=");
                //If this line exists
                if(findPhone != -1 ) {
                        //Remove "PhoneNumber=" from the line, leaving you with just the actual number
                        text = text.replace("PhoneNumber=", "");
                        //Print to standard out
                        System.out.println(text);
                        //Give text's value to the string phone in case you need it
                        phone = text;
                }
        }
        //Close everything!!!
        buf.close();
        in.close();
}catch(IOException e) {System.err.println(e);}
        catch(NullPointerException e) { System.err.println("That file did not load"); }
}

---

This should work but tell me if there are any compiler errors.

Yes sir, i think i'm near to the solution :)-:
thanks alot sir..:(happy)::(happy)::(happy):

Code:-

Code:

---

import java.io.*;

public class docph {
    public static void main(String[] args) {
        String[] lines = new String[0];
        String path = "input.txt";
        BufferedReader br = null;
        String phone;
        try {
            File file = new File(path);
            br = new BufferedReader(
                new InputStreamReader(
                new FileInputStream(file)));
            String text;
            while( (text = br.readLine()) != null ) {
int findPhone = text.indexOf("PhoneNumber=");
if(findPhone != -1 ) {
//Remove "PhoneNumber=" from the line, leaving you with just the actual number
text = text.replace("PhoneNumber=", "");
//Print to standard out
System.out.println(text);
//Give text's value to the string phone in case you need it
phone = text;
                }
        }
        //Close everything!!!
        br.close();
        //in.close();
}catch(IOException e) {System.err.println(e);}
catch(NullPointerException e)
{ System.err.println("That file did not load"); }
}
}

---

My text file contained the following details (File name input.txt)

Code:

---

Toyota PhoneNumber= 1456328795
Subaru PhoneNumber= 6954013010
Volkswagen  PhoneNumber= 5432869823
Chevrolet
Ford
Chrysler
Dodge

---

and the output was:-
Toyota 1456328795
Subaru 6954013010
Volkswagen 5432869823

but now what i need is that i don't want that names along with the number, what can i do to remove that names, i just need the phone numbers only...

Use indexOf to find the location of the = and then use substring if it is greater the 0.

I suggest learning the "format code" function of your IDE of choice. :D:

And I would do something like this:

Code:

---

                                String phoneNumberText = "PhoneNumber=";
                                int findPhone = text.indexOf(phoneNumberText);
                                if (findPhone != -1) {
                                        // Remove "PhoneNumber=" from the line, leaving you with
                                        // just the actual number
                                        phone = text.substring(findPhone + phoneNumberText.length() + 1);
                                        // Print to standard out
                                        System.out.println(phone);
                                }

---

substring if greater than 0 means, i dint get u sir. Sorry
what should i give as parameters for substring()

Quote:

---

Originally Posted by durga.laxmi

substring if greater than 0 means, i dint get u sir. Sorry
what should i give as parameters for substring()

---

Have you read the String API? It's all spelled out for you there.

Quote:

---

Originally Posted by durga.laxmi

substring if greater than 0 means, i dint get u sir. Sorry
what should i give as parameters for substring()

---

Would you like us to spoonfeed you the code so you don't have to learn anything?

yes ofcourse sir, i have heard of it . bt am not dat much familiar to use it. thatsy! :(think):

i got the output when i changed my code as per you said :)-:

Oh no sir. i didn't mean that! :(-:
i have no one else to ask for a help in java. thatsy.

i changed the code like this:
i know its not at all a great thing to just copy n paste the code u suggest. :(-:
but am really thankful to you for helping me out by explaining all such small things ...

Code:-

Code:

---

import java.io.*;

public class phextract {
    public static void main(String[] args) {
        String[] lines = new String[0];
        String path = "input.txt";
        BufferedReader br = null;
        String phone;
        try {
            File file = new File(path);
            br = new BufferedReader(
                new InputStreamReader(
                new FileInputStream(file)));
            String text;
            while( (text = br.readLine()) != null ) {

String phoneNumberText = "PhoneNumber=";
int findPhone = text.indexOf(phoneNumberText);
if (findPhone != -1) {
// Remove "PhoneNumber=" from the line, leaving you with
// just the actual number
phone = text.substring(findPhone + phoneNumberText.length() + 1);
// Print to standard out
System.out.println(phone);
        }
  }
        //Close everything!!!
        br.close();
        //in.close();
}catch(IOException e) {System.err.println(e);}
catch(NullPointerException e)
{ System.err.println("That file did not load"); }
}
}

---

Sir eventhough i got the output correctly, i tried to change it by being adding some more strings like "Contact No:", "Ph No:", "Phone No:" along with "PhoneNumber=" by using String[].
But now i got some compile errors and couldn't resolve it.
i changed the code like this:

Code:

---

String phoneNumberText[] = new String [3];
phoneNumberText[0]="Contact No:";
phoneNumberText[1]="Ph No:";
phoneNumberText[2]="Phone No:";
int findPhone = text.indexOf(phoneNumberText[0]);
int fp1=text.indexOf(phoneNumberText[1]);
int fp2=text.indexOf(phoneNumberText[2]);
if (findPhone != -1||fp1 != -1||fp2 != -1) {
// Remove "PhoneNumber=" from the line, leaving you with just the actual number
phone = text.substring(findPhone + phoneNumberText[].length() + 1);
// Print to standard out
System.out.println(phone);
        }
  }

---

The errors where on the line

phone = text.substring(findPhone + phoneNumberText[].length() + 1);

2 errors !!
one was class expected and the other was ')' expected



:(think):

You should always post what errors you have found. The actual output from the compiler...

Hmmm, lol! Hello! :P: If you took some time to look at your code you would see the empty [] right in front of you! You forgot to specify which String from the array of strings you wanted so Java gave you an error. I am not too sure which string you wanted so I will leave that up to you.

Ohh..!! Now i got it...!!:8): thank you thank you thankkkk youu:)-::)-::(happy)::(happy): for pointing out the mistake i did....:)-:

i have another doubt now..:(-:
my input.txt file contains the following details

Toyota Ph No: 1456328795
Subaru contact No: 6954013010
Volkswagen Phone Number : 5432869823

My code works well with this...
but the problem is that if i gave any other details in the same line after the phone number, that will also get printed...:(think):
i only need the phone number to be printed ...how can i make that possible..?? can anybody give me some clue..

ie if my input.txt file now contains details like this:
Toyota Ph No: 1456328795 email: abc@abcmail.com
Subaru contact No: 6954013010
Volkswagen Phone Number : 5432869823

now my output will change to
1456328795 email: abc@abcmail.com
6954013010
5432869823


so i want to omit everything that comes after the phone number now...

Options:

1. Hire a Java programmer.
2. See below.

Code:

---

                                        int firstCharOfPhoneNumber = findPhone + phoneNumberText.length() + 1;
                                        phone = text.substring(firstCharOfPhoneNumber, firstCharOfPhoneNumber + 10);

---

(Why am I such a nice guy?!? :(blush): )

Quote:

---

Originally Posted by durga.laxmi

i have another doubt now..:(-:

Toyota Ph No: 1456328795 email: abc@abcmail.com
Subaru contact No: 6954013010
Volkswagen Phone Number : 5432869823

so i want to omit everything that comes after the phone number now...

---

Why are you making things hard on yourself. You should just give email it's own line, or follow the above, but still try to look for the easiest option even when doing something that needs a complete algorithm.