Compiling and using jar file for custom classes

[MAILMIRZA]

Hi ,

I downloaded java classes available as attached file with this post


I un-zippped and saved the class files in sms folder.

I successfully compiled it using javac as below:

C:\Program Files\Java\jdk1.6.0_11\bin>javac sms\SMSClient.java sms\Sender.java sms\SerialConnection.java sms\SerialConnectionException.java sms\SerialParameters.java

then i created jar file using the command below:
C:\Program Files\Java\jdk1.6.0_11\bin>jar cf SMSClientpack.jar sms\Sender.class sms\SerialConnection$KeyHandler.class sms\SerialConnection.class sms\SerialConnectionException.class sms\SerialParameters.class sms\SMSClient.class

Then I placed that SMSClientpack.jar in
C:\Program Files\Java\jdk1.6.0_11\lib


Then i created a file with name DemoSMS.java to use above code

//DemoSms.java
import java.SMSClientpack.*;

public class DemoSms
{
public static void main(String args[])
{
SMSClient sc = new SMSClient();
sc.sendMessage("mycellnumber","Hello");
}

}
//ends here


It shows following error, please help where i am doing wrong?

C:\Program Files\Java\jdk1.6.0_11\bin>javac DemoSms.java
DemoSms.java:3: package java.SMSClientpack does not exist
import java.SMSClientpack.*;
^
DemoSms.java:10: cannot find symbol
symbol : class SMSClient
location: class DemoSms
SMSClient sc = new SMSClient();
^
DemoSms.java:10: cannot find symbol
symbol : class SMSClient
location: class DemoSms
SMSClient sc = new SMSClient();
^
3 errors


thanks,
Kashif

[mtyoung]

SMSClientpack.jar is external jar, i think.

you may try to copy the jar to project directory
package it, and import it

and
compile using -classpath to point to to SMSClientpack.jar

[MAILMIRZA]

Thanks, Appreciate your help.
I am using notepad. Should I shift to Eclipse for this pupose or is there any other alternative?

[Eranga]

What mtyoung described is the best way to get practice it. You are trying to import that external jar file in java default package, something like this,

import java.*;

It's not possible, not valid. What must import correct package according to your project placed.

Almost all IDEs able to link external jar files. If you are working on an IDE, it'll added the external jar files for you.