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Getting error on calling method belongs to java class.

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posted 12 years ago

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Hello,

I am creating jsp page to get user input, calling another jsp to set bean properties and also calling java class to calculate days. But I am getting error on that method calling line. My code are as follow:

1. home.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>User Form</title>
    </head>
    <body>
        <h1 align="center">Enter Your Details</h1>
        <form method="get" action="Bean.jsp">
            <table>
                <tr>
                    <td><label>First Name</label></td>
                    <td><input type="text" name="firstName"></td>
                </tr>
                <tr>
                    <td><label>Last Name</label></td>
                    <td><input type="text" name="lastName"></td>
                </tr>
                <tr>
                    <td><label>Date of Birth(mm/dd/yyyy)</label></td>
                    <td><input type="text" name="dob"></td>
                </tr>
                <tr>
                    <td><input type="submit" name="Submit" value="Submit"></td>
                </tr>
            </table>
        </form>
    </body>
</html>

2. Bean.jsp

3. MyBean.java

4. java class

package JavaSource;

import java.text.*;
import java.util.*;

public class NextBday {
    
  Calendar earlier = Calendar.getInstance();  
  Calendar later = Calendar.getInstance();        
    
  
  int currentYear, currentMonth, currentDay;
  String delimeter = "/";
  
  public void service(String dob)
  {      
      String bDate[] = dob.split(delimeter,3);  
        
      currentYear = earlier.get(Calendar.YEAR);  
      currentMonth = earlier.get(Calendar.MONTH)+1;  
      currentDay = earlier.get(Calendar.DATE);  
        
      earlier.set(currentYear, currentMonth, currentDay);
      later.set(currentYear, Integer.valueOf(bDate[0]), Integer.valueOf(bDate[1]));  
      long oneDay = (24 * 60 * 60 * 1000);
      
      long milliseconds1 = earlier.getTimeInMillis();
      long milliseconds2 = later.getTimeInMillis();
      long remain = (milliseconds2 - milliseconds1)/oneDay;
      
      if(remain <=0)  
      {  
        later.set(currentYear+1, Integer.valueOf(bDate[0]), Integer.valueOf(bDate[1]));
        milliseconds2 = later.getTimeInMillis();
        remain = (milliseconds2 - milliseconds1)/oneDay+remain;
      }  
        
      int earlierDays = earlier.get( Calendar.DAY_OF_YEAR );  
      int laterDays = later.get( Calendar.DAY_OF_YEAR );  
      System.out.println(remain);  
  }
    
}

I would really appreciate, if anyone could help me.

Paul Clapham

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posted 12 years ago

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First of all, what makes you think you are getting an error?

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Kasparov Patel

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posted 12 years ago

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Getting error while calling Bean.jsp at line where I am creating instance of java class and calling method.

Bear Bibeault

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posted 12 years ago

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Keeping the error a secret isn't going to get you much help, is it?

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Kasparov Patel

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posted 12 years ago

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Getting following error

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 32 in the jsp file: /Bean.jsp
The method print(boolean) in the type JspWriter is not applicable for the arguments (void)
29: </p>
30: <p>
31: <% NextBday bday = new NextBday();%>
32: My Next Birth Day is after <%=bday.service(request.getParameter("dob"))%> days.
33: </p>
34: </body>
35: </html>

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:644)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)

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