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How do i compare an object with null? From what i've seen right now, at execution an NullPointerException will be thrown :S For example, if I have a list: [code=java] class List { private Node data; private Lista urm; public List(Node d,Lista u) { data = d; urm = u; … 
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Hello I am working with Jasper iReports, I call a method inside of one subreport created in Java when I run the application sends me the following error: Cannot cast from JasperReport to String value = (java.lang.String)(com.server.beans.GafJasperUtil.getReport(((java.lang.Object)parameter_SUBREPORT_GIS.getValue()), ((java.lang.String)parameter_SUBREPORT_DIR.getValue()) + "GIS-Report"));//$JR_EXPR_ID=45$ <----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------> What should I modified? Thank you.
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Hello I am quite new programming in Jython, I am working with DB. I a send SQL Statements, but I want to handle the zero rows in Resulset. rs = dataSource.performQuery(sqlstatement) rs.moveFirst() I dont know which condition has to be set when the Resulset doesnt has any row. When I …
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