How to get Picklist Value of an object Dynamically

This is very simple. I am sharing some code ,please go through this
Here is My Controller 
public class testclass {
    public Job__c job{get;set;}
    public List<SelectOption> options{get;set;}
    public testclass(){
        options = new List<SelectOption>();
        Schema.DescribeFieldResult fieldResult = Job__c.Status__c.getDescribe();
        List<Schema.PicklistEntry> ple = fieldResult.getPicklistValues();
        for( Schema.PicklistEntry f : ple){
       
          options.add(new SelectOption(f.getLabel(), f.getValue()));
        }
    }
   
   
}

My Page 

<apex:page controller="testclass ">

  <apex:form>

      <apex:pageBlock>

          

          Order Status:<apex:selectList id="countries" value="{!job.Status__c}" size="1" required="true" >

              <apex:selectOptions value="{!options}"/>

          </apex:selectList>

      </apex:pageBlock>

      

  </apex:form>

  

</apex:page>