In java is it possible to execute jsp/servlet from frame/applet with a buttonclick event?

Question

if a button is clicked (which is in applet/frame etc) a jsp/servlet should be opened to accept form data

Answer 1

String servletURL = "www.myhome.com/myservletURL";

//in body of ActionListener for the button
AppletContext context = getAppletContext();
context.showDocument(servletURL);

//will cause browser to open the servlet-generated form page.

If you want to open in an HTML frame or in a separate browser window, take a look at the Javadocs for AppletContext.show(url, target).