Apex Code of incentive object-->
public class incentive1 
{
public Incentitive1__c incen{get;set;}
public incentive1 ()
{
incen=new Incentitive1__c ();
}
public pagereference Save()
{
if(incen.Name!= Null)
{
   insert incen;
}
List<Incentitive1__c> incenlist=new List<Incentitive1__c>();
if(incen.Type__c=='Quarterly')
{
    for(integer i=1;i<=3;i++)
    {
        Incentitive1__c incenQuarterly=new Incentitive1__c (); //making Object to insert the details
        incenQuarterly.Name='IncentiveQuarterly'+i;
        incenQuarterly.Incentive__c=incen.id;
        incenQuarterly.Date__c=incen.Date__c;
        incenQuarterly.Type__c=incen.Type__c;
        incenQuarterly.TotalAmount__c=(incen.TotalAmount__c/3);
        incenlist.add(incenQuarterly);
    }insert incenlist;
}
if(incen.Type__c=='Monthly')
{
     for(integer i=1;i<=12;i++)
     {
        Incentitive1__c incenMonthly=new Incentitive1__c ();
        incenMonthly.Name='IncentiveMonthly'+i;
        incenMonthly.Incentive__c=incen.id;
        incenMonthly.Date__c=incen.Date__c;
        incenMonthly.Type__c=incen.Type__c;
        incenMonthly.TotalAmount__c=(incen.TotalAmount__c/12);
        incenlist.add(incenMonthly);
     }insert incenlist;
}
if(incen.Type__c=='Yearly')
{
    for(integer i=1;i<=1;i++)
    {
        Incentitive1__c incenYearly=new Incentitive1__c (); //making Object to insert the details
        incenYearly.Name='IncentiveYearly'+i;
        incenYearly.Incentive__c=incen.id;
        incenYearly.Date__c=incen.Date__c;
        incenYearly.Type__c=incen.Type__c;
        incenYearly.TotalAmount__c=(incen.TotalAmount__c/1);
        incenlist.add(incenYearly);
    }insert incenlist;
}   

if(incen.Type__c=='Half-Yearly')
{
   for(integer i=1;i<=6;i++)
   {
       Incentitive1__c incenHalfYearly=new Incentitive1__c (); //making Object to insert the details
       incenHalfYearly.Name='IncentiveHalf-Yearly'+i;
       incenHalfYearly.Incentive__c=incen.id;
       incenHalfYearly.Date__c=incen.Date__c;
       incenHalfYearly.Type__c=incen.Type__c;
       incenHalfYearly.TotalAmount__c=(incen.TotalAmount__c/6);
       incenlist.add(incenHalfYearly);
   }insert incenlist;
}

pagereference pg=new pagereference('/'+incen.id);
return pg;
}
public pagereference Cancel()
{
   pagereference pf=new pagereference('https://11com-b-dev-ed.develop.my.salesforce.com/a04/o');
   return pf;

}

}
Visualforce page code-->
<apex:page controller="incentive1">
<apex:form >
<apex:sectionHeader title="Incentive Edit"  subtitle="NewIncentive"/>
<apex:pageBlock >
<apex:pageBlockButtons >
<apex:commandButton value="Save" action="{!Save}"/>
<apex:commandButton value="Cancel" action="{!Cancel}"/>
</apex:pageBlockButtons>
<apex:pageBlockSection title="Information" columns="1">
<apex:inputField value="{!incen.Name}"/>
<apex:inputField value="{!incen.Incentive__c}"/>
<apex:inputField value="{!incen.Date__c}"/>
<apex:inputField value="{!incen.Type__c}"/>
<apex:inputField value="{!incen.TotalAmount__c}"/>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
</apex:page>