Passing parameter/variable into substring?

[wilxom]

An error message was prompted out when i try to insert argument(PARAMETERS) into the substring statement.

 

Error Message:

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file: 1. The method substring(int) in the type String is not applicable for the arguments (Integer) value = (java.lang.String)(((java.lang.String)field_NLHASH.getValue()).substring( ((java.lang.Integer)parameter_pendM.getValue()) ));//$JR_EXPR_ID=8$ <------->

 

Example:

 

$F{NLHASH}.substring( $P{pbeginM}, $P{pendM} )

 

I tested both parameter having values but it display an error saying that the method substring(int) in the type String is not applicable for the arguments (Integer).

 

Please help. Thanks

 

Regards,

Wilson

[codyjasperForge]

Instead of casting 'parameter_pendM' into and 'Integer',

you need to cast it into a 'int'.

 

Either add '.intValue()' onto the end of you parenthesis, or try another method of casting.

 

((java.lang.Integer)parameter_pendM.getValue()).intValue()));

 

See what this does...

[wilxom]

Thanks for your reply.

With the solution provided, i manage to past the parameter or variable into the substring. I just added intValue() at the back of each parameter.

Please refer to the below statement:

 

$F{NLHASH}.substring( $P{pbeginM}.intValue(), $P{pendM}.intValue() )

 

Thanks for the solution provided.

 

Regards,

Wilson