Weekly date range - jsf-2

Question

I want to make a weekly range date for selected date which is captured when i clicked a date on calendar . This is the code that i've made.
package com.cc.cielo.backingbean.timesheet;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.joda.time.DateTime;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import com.cc.cielo.backingbean.BaseBackingBean;
import com.cc.cielo.managedbean.timesheet.TimesheetManagedBean;
#ManagedBean(name = "timesheetBackingBean")
#RequestScoped
public class TimesheetBackingBean extends BaseBackingBean<TimesheetManagedBean> {
public String createDateRange() {
Date selDate = this.getManagedBean().getSelectedDate();
return null;
}
public TimesheetBackingBean(){
}
}
<p:column colspan="2" >
</p:column>
<p:column colspan="7">
<p:panelGrid style="width:100%">
<p:row style="color: ##bfbfbf">
<p:column style="width:20%">
<p:button icon="ui-icon-triangle-1-w" disabled="false">
<f:param name="productId" value="10" />
</p:button>
</p:column>
<p:column style="width:60%; text-align:center">
<h:outputLabel value="#{timesheetBackingBean.createDateRange}" />
</p:column>
<p:column style="width:20%; text-align:right">
<p:button icon="ui-icon-triangle-1-e" disabled="false">
<f:param name="productId1" value="10" />
</p:button>
</p:column>
</p:row>
</p:panelGrid>
</p:column>
<p:column colspan="7" style="text-align: right;">
<p:calendar id="event" value="#{timesheetBackingBean.managedBean.selectedDate}" showOn="button" pattern="dd/MM/yyyy" mask="true">
<p:ajax event="dateSelect" listener="#{timesheetBackingBean.createDateRange}" />
</p:calendar>
</p:column>
</p:row>
</f:facet>
now i want to paste the weekly range from the date i've choosed into that output label.

Answer 1

With some research on google . i found my answer for my question.
public String createDateRange() {
Date selDate = this.getManagedBean().getSelectedDate();
Date date = new Date();
Calendar c = new GregorianCalendar();
c.setTime(selDate);
c.setFirstDayOfWeek(Calendar.MONDAY);
int i = c.get(Calendar.DAY_OF_WEEK) - c.getFirstDayOfWeek();
c.add(Calendar.DATE, -i);
Date start = c.getTime();
c.add(Calendar.DATE, 6);
Date end = c.getTime();
System.out.println(start + " - " + end);
SimpleDateFormat format1 = new SimpleDateFormat("dd/MM/yyyy");
String formatted = format1.format(start);
String formatted2 = format1.format(end);
this.getManagedBean().setDateRange(formatted + " - " + formatted2);
return null;
}
<p:column style="width:60%;text-align: center;">
<h:outputLabel id="dateRange" value="#{timesheetBackingBean.managedBean.dateRange}"/>
</p:column>
<p:column style="width:20%; text-align:right">
<p:button icon="ui-icon-triangle-1-e" disabled="false">
<f:param name="productId1" value="10" />
</p:button>
</p:column>
</p:row>
</p:panelGrid>
</p:column>
<p:column colspan="7" style="text-align: right;">
<p:calendar id="event" value="#{timesheetBackingBean.managedBean.selectedDate}" imediate="true" showOn="button" pattern="dd/MM/yyyy" mask="true">
<p:ajax event="dateSelect" listener="#{timesheetBackingBean.createDateRange}" update="dateRange" />
</p:calendar>
</p:column>