Как вывести значение из Объекта в поле страницы Visualforce Page?

Для розробників Розробка з використанням Apex коду
1

Код Visualforce Page

Appointment Table
<apex:form >

    <apex:pageBlock >
        <apex:pageBlockSection>
            Select a doctor:
            <apex:selectList size="1" multiselect="false" >
                <apex:selectOptions id="selectedDoctor" value="{!doctorSelectOptionList}"/> 
            </apex:selectList>
               
            </apex:pageBlockSection>        
            <apex:pageBlockSection id="startWork" >
                Working House Start:            
                </apex:pageBlockSection>
            
            <apex:pageBlockSection id="endWork">
                Working House End:
            </apex:pageBlockSection>
   
    </apex:pageBlock> 
    
    <apex:pageBlock>
        Select a patient:
            <apex:selectList size="1" multiselect="false">
                <apex:selectOptions value="{!patientSelectOptionList}"/>
            </apex:selectList>
    </apex:pageBlock>  
  
</apex:form>

Код Контроллера

public class ApexContr {

public List<Doctor__c> DoctorList {get;set;}
public List<SelectOption> doctorSelectOptionList {get;set;}
public List<Patient__c> PatientList {get;set;}
public List<SelectOption> patientSelectOptionList {get;set;} 
public List<Doctor__c> endTime{get; set;}


public ApexContr (){ 

    doctorSelectOptionList = new List<SelectOption>();
    patientSelectOptionList = new List<SelectOption>();
    
    DoctorList = [SELECT iD, Name FROM Doctor__c];
    for (Doctor__c doc : DoctorList){ 
        doctorSelectOptionList.add(new SelectOption(doc.Id, doc.Name)); 
    }  

    PatientList = [SELECT Id, Name FROM Patient__c];
    for (Patient__c patient : PatientList){
        patientSelectOptionList.add(new SelectOption(patient.Id, patient.Name)); 
    }         
    endTime = [SELECT Working_Hours_End__c FROM Doctor__c];
}

}