Posts Tagged Calendar

JSP Calendar

Sunday, May 17th, 2009

This JSP calendar can easily work with any java web application. This is free JSP calendar software for download and use. If you want to use calendar in your application you can use this calendar in JSP application. In this calendar, we can change year and month to go back and forward to option of calendar. Value of year and month in calendar can be changed by in combo box code.

<%@ page  language="java" import="java.util.*,java.text.*"%>
<%!
public int nullIntconv(String inv)
{   
    int conv=0;
        
    try{
        conv=Integer.parseInt(inv);
    }
    catch(Exception e)
    {}
    return conv;
}
%>
<%
 int iYear=nullIntconv(request.getParameter("iYear"));
 int iMonth=nullIntconv(request.getParameter("iMonth"));

 Calendar ca = new GregorianCalendar();
 int iTDay=ca.get(Calendar.DATE);
 int iTYear=ca.get(Calendar.YEAR);
 int iTMonth=ca.get(Calendar.MONTH);

 if(iYear==0)
 {
      iYear=iTYear;
      iMonth=iTMonth;
 }

 GregorianCalendar cal = new GregorianCalendar (iYear, iMonth, 1); 

 int days=cal.getActualMaximum(Calendar.DAY_OF_MONTH);
 int weekStartDay=cal.get(Calendar.DAY_OF_WEEK);
 
 cal = new GregorianCalendar (iYear, iMonth, days); 
 int iTotalweeks=cal.get(Calendar.WEEK_OF_MONTH);
  
%>
<html>
<head>
<title>How to create Calendar in JSP</title>
<script>
function goTo()
{
  document.frm.submit()
}
</script>
<style>
body
{
 font-family:Verdana, Arial, Helvetica, sans-serif
}
.dsb
{
 background-color:#EEEEEE
}
</style>
</head>

<body>
<form name="frm" method="post">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="25%">&nbsp;</td>
    <td width="45%">&nbsp;</td>
    <td width="30%">&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td><table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><table width="100%" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td width="6%">Year</td>
        <td width="7%">
        <select name="iYear" onChange="goTo()">
        <%
        // start year and end year in combo box to change year in calendar
        for(int iy=iTYear-70;iy<=iTYear+70;iy++)
        {
          if(iy==iYear)
          {
            %>
          <option value="<%=iy%>" selected="selected"><%=iy%></option>
          <%
          }
          else
          {
            %>
          <option value="<%=iy%>"><%=iy%></option>
          <%
          }
        }
       %>
        </select></td>
        <td width="73%" align="center" style="color:#4E96DE"><h3><%=new SimpleDateFormat("MMMM").format(new Date(2008,iMonth,01))%> <%=iYear%></h3></td>
        <td width="6%">Month</td>
        <td width="8%">
        <select name="iMonth" onChange="goTo()">
        <%
        // print month in combo box to change month in calendar
        for(int im=0;im<=11;im++)
        {
          if(im==iMonth)
          {
         %>
          <option value="<%=im%>" selected="selected"><%=new SimpleDateFormat("MMMM").format(new Date(2008,im,01))%></option>
          <%
          }
          else
          {
            %>
          <option value="<%=im%>"><%=new SimpleDateFormat("MMMM").format(new Date(2008,im,01))%></option>
          <%
          }
        }
       %>
        </select></td>
      </tr>
    </table></td>
  </tr>
  <tr>
    <td><table align="center" border="1" cellpadding="3" cellspacing="0" width="100%">
      <tbody>
        <tr>
          <th>Sun</th>
          <th>Mon</th>
          <th>Tue</th>
          <th>Wed</th>
          <th>Thu</th>
          <th>Fri</th>
          <th>Sat</th>
        </tr>
        <%
        int cnt =1;
        for(int i=1;i<=iTotalweeks;i++)
        {
        %>
        <tr>
          <% 
            for(int j=1;j<=7;j++)
            {
                if(cnt<weekStartDay || (cnt-weekStartDay+1)>days)
                {
                 %>
                <td align="center" height="35" class="dsb">&nbsp;</td>
               <% 
                }
                else
                {
                 %>
                <td align="center" height="35" id="day_<%=(cnt-weekStartDay+1)%>"><span><%=(cnt-weekStartDay+1)%></span></td>
               <% 
                }
                cnt++;
              }
            %>
        </tr>
        <% 
        }
        %>
      </tbody>
    </table></td>
  </tr>
</table></td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
</table>
</form>
</body>
</html>

Download source code JSP Calendar

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