can I integrate the JasperReports Viewer to my Swing application as like if I click on view report button from my application then viewer should be opened. If so could you advis
Yes you can, Jasper Reports come with a usable (albeit simple) report viewer:
...
JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport...);
JasperViewer.viewReport(jasperPrint);
...
The last line is what displays the viewer. I'm not sure if you can restrict the available output formats to PDF, though.