how to add jar file

[vikassawant]

hi,
to solve problem of Importing excel file in to JTable,I used
JTableReadTable ModelTask class.
This class in not present in jdk version. Thats why I download one jar file named as...
datagrid-all.jar.

In enviornment variables,I set the classpath as
C:\datagrid\dat agrid-all.jar

Now also my project give error as Can not find Class Symbol.

Is here any mistake to set the path.


Thanks,in advance.

Regards,
Vikas Sawant.

[r035198x]

How are you compiling the source files?

[vikassawant]

Thanks for reply.

I am using Editor-JCreator and there is buttons for compilation and execution,which I used.

[r035198x]

Basically you need to tell your editor to use that jar as part of classpath when executing the javac command. How to do that may be documented in Jcreator's help (I don't use it and I don't know). If you can't find how you can always compile the files on the command line and provide the classpath yourself.

[vikassawant]

yes I make this modification.It works.My code for importing excel file is,

try {
String excelFileName = "Team1.xls" ;
File file = new File(excelFileN ame ); //‘file’ is the file you want to load.
JProgressBar progressBar = new JProgressBar(); //‘progressB ar’ will show how much data it have loaded.
JTableReadTable ModelTask task = new JTableReadTable ModelTask(file, null,progressBa r,model);
task.execute();
}
catch (IOException ex) {
System.out.prin tln(ex.getMessa ge());
ex.printStackTr ace();
}

but now it gives error that is,

D:\flb\Manual.j ava:1023: cannot find symbol
symbol : constructor JTableReadTable ModelTask(java. io.File,<nullty pe>,javax.swing .JProgressBar,j avax.swing.tabl e.DefaultTableM odel)
location: class com.zfqjava.swi ng.JTableReadTa bleModelTask
JTableReadTable ModelTask task = new JTableReadTable ModelTask(file, null,progressBa r,model);


What is the reason behind this error.

Thanks.

[r035198x]

See the error message. It's trying to hard to tell what the problem is.
Basically that the JTableReadTable ModelTask class does not have a constructor with parameters which match the arguments that you are passing when calling that constructor.

[vikassawant]

This is the constructor definition which i get from API ,

public JTableReadTable ModelTask(Objec t urlObject,
Map readProperties,
JProgressBar progressBar,
JTable table)

Parameters:
urlObject - a java.io.File or java.net.URL object
readProperties - ModelIO
progressBar - a progress bar to monitor the read process
table - the result TableModel will set to JTable


please tell me what is wrong in my constructor.

Thanks,
Vikas Sawant

[r035198x]

The error message that you got is telling you that you are passing a
javax.swing.tab le.DefaultTable Model where a JTable is expected.