Time estimation of a class file without execution

Can any body help me....
I have to find the execution time of class files without execution.
can I do it with java...!!!!!!!!!!

Presumably this is a class assignment and not a work assignment. If it is for work then either ask for justification for this stupidity or start playing games and looking for another job.
Use javap and count the byte codes. Each byte code has a size so give a execution time of n X size. Each branch has a execution time of n X size + 1 (since it take longer.) Each method call is n X size + 2 (a goto and a return.)
'n' in the above is an arbritrary constant.
Each method is the sum of its contents. If you have a loop that calls a method you have to estimate the average loops and use that multiplied by the method count.
For system methods you will just have to list them and give each a unknown time, since presumably you aren't analyzing everything.

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Hi,
Any one please help me out.
my requirement is like I want to use Business Objects SDK
<%@ page import="com.crystaldecisions.sdk.framework.CrystalEnterprise" %>
above is example..
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Also can I Login Into business Objects through class file not using netbean(means from command prompt)
and create user group into CMS.

Please find following servlet code who dont understand my requirement.
* GroupCreation.java
* Created on September 2, 2008, 3:47 PM
import java.io.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.crystaldecisions.enterprise.ocaframework.ServiceNames;
import com.crystaldecisions.sdk.exception.SDKException;
import com.crystaldecisions.sdk.framework.CrystalEnterprise;
import com.crystaldecisions.sdk.framework.IEnterpriseSession;
import com.crystaldecisions.sdk.framework.ISessionMgr;
import com.crystaldecisions.sdk.occa.infostore.IInfoStore;
import com.crystaldecisions.sdk.occa.managedreports.*;
import com.crystaldecisions.sdk.occa.security.ILogonTokenMgr;
import javax.servlet.http.Cookie;
import com.crystaldecisions.sdk.occa.infostore.*;
import com.crystaldecisions.sdk.occa.pluginmgr.*;
import com.crystaldecisions.sdk.plugin.CeProgID;
import com.crystaldecisions.sdk.plugin.desktop.user.*;
import com.crystaldecisions.sdk.properties.*;
import javax.servlet.http.HttpSession;
* @author prashant.joshi
* @version
public class GroupCreation extends HttpServlet
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
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response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String cms = request.getParameter("CMS");
String username = request.getParameter("UserID");
String password = request.getParameter("Password");
String auth = request.getParameter("Aut");
IEnterpriseSession enterpriseSession = null;
try
ISessionMgr sessionMgr = CrystalEnterprise.getSessionMgr();
catch(SDKException e)
out.println(e.getMessage());
Exception failure = null;
boolean loggedIn = true;
// If no session already exists, logon using the specified parameters.
if (enterpriseSession == null)
try
// Attempt logon. Create an Enterprise session
// manager object.
ISessionMgr sm = CrystalEnterprise.getSessionMgr();
// Log on to BusinessObjects Enterprise
enterpriseSession = sm.logon(username, password, cms, auth);
catch (Exception error)
loggedIn = false;
failure = error;
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out.println("<SCRIPT language=\"javascript\"> " +
" alert (\"Sorry - you could not be logged on to this server." +
" Ensure that your user name and password, as well as the CMS name are correct." +
"\"); </SCRIPT>");
out.println("<META HTTP-EQUIV='refresh' CONTENT='0;URL=LogonPage.jsp'>");
return;
else
try
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session.setAttribute("EnterpriseSession", enterpriseSession);
// Create the IInfoStore object.
IInfoStore iStore = (IInfoStore) enterpriseSession.getService("InfoStore",
ServiceNames.OCA_I_IINFO_STORE);
// Store the IInfoStore object in the session using the
// helper functions.
session.setAttribute("InfoStore", iStore);
// Create the IReportSourceFactory object.
IReportSourceFactory reportSourceFactory = (IReportSourceFactory) enterpriseSession.getService("PSReportFactory");
// Store the IReportSourceFactory object in the session
// using the helper functions.
session.setAttribute("ReportSourceFactory", reportSourceFactory);
// Retrieve the logon token manager.
ILogonTokenMgr logonTokenMgr = enterpriseSession.getLogonTokenMgr();
// Retrieve a logon token and store it in the user's cookie
// file for use later.
Cookie cookie = new Cookie("LogonToken", logonTokenMgr.createLogonToken("", 60, 100));
response.addCookie(cookie);
// LOCUse the plugin manager and the UserGroup plugin to create a new
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// LOCIf the infoStore object is not found then display an error message._ENDLOC_
IInfoStore infoStore = (IInfoStore) session.getAttribute("InfoStore");
// LOCIf the infoStore object is not found then display an error message._ENDLOC_
if (infoStore == null)
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//IPluginMgr pluginMgr2 = infoStore.getPluginMgr();
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IInfoObjects newInfoObjects1 = infoStore.newInfoObjectCollection();
IInfoObjects newInfoObjects2 = infoStore.newInfoObjectCollection();
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newInfoObjects1.add(userGroupPlugin);
newInfoObjects2.add(userGroupPlugin);
// LOCGet the new UserGroup object from the collection._ENDLOC_
IInfoObject iObject1 = (IInfoObject) newInfoObjects1.get(0);
IInfoObject iObject2 = (IInfoObject) newInfoObjects2.get(0);
// LOCOnce you have the new UserGroup object, set its properties._ENDLOC_
iObject1.setTitle ("Single Home Group");
iObject1.setDescription ("It is Single Home Group");
iObject2.setTitle ("Multi home Group");
iObject2.setDescription ("It is multi Home Group");
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// objectID = iObject.getID();
// LOCSave the new group to the CMS._ENDLOC_
infoStore.commit (newInfoObjects1);
infoStore.commit (newInfoObjects2);
catch(Exception ex)
// If the User group is already created.
out.println("<SCRIPT language=\"javascript\"> " +
" alert (\"Sorry - The User Group is already created Please enter another User Group." +
"\");</SCRIPT>");
out.println("<META HTTP-EQUIV='refresh' CONTENT='0;URL=LogonPage.jsp'>");
return;
// If the User is Logged on the Business objects
out.println("<SCRIPT language=\"javascript\"> " +
" alert (\"UserGroup get created in CMS.\"); </SCRIPT>");
out.println("<META HTTP-EQUIV='refresh' CONTENT='0;URL=LogOff.jsp'>");
out.close();
/** Returns a short description of the servlet.
public String getServletInfo() {
return "Short description";
// </editor-fold>
when I paste above code in simple notepad as class file and run this file from command prompt
it gives error like following 1 example I getting 46 errors for different Business Objects classes
symbol : variable CrystalEnterprise
location: class GroupCreation
ISessionMgr sm = CrystalEnterprise.getSessionMgr();
Please help me Out.
Thank you.

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Time estimation of a class file without execution

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