Combining two Jasper reports

Question

I have a web application with a dropdown from where user could select the type of report viz. report1, report2, report3, etc.

Based on the report selected, a Jasper

Answer 1

You can try this one this is work for me

JasperPrint jp1 = JasperFillManager.fillReport(reportFile1,reportParams,Connection);  
JasperPrint jp2 = JasperFillManager.fillReport(reportFile2,reportParams,Connection);  
for (int j = 0; j < jp1.getPages().size(); j++) {  
    //Add First report to second report
    jp2.addPage((JRPrintPage) jp1.getPages().get(j));  
}