Sample code:

Visualforce page:

<apex:page standardController=”Account” extensions=”sample”>
    <!– Dynamic creation of Section Header –>
    <apex:dynamicComponent componentValue=”{!secHead}”/>
   
    <apex:form >
        <!– Dynamic creation of pageBlock –>
        <apex:dynamicComponent componentValue=”{!formSample}”/>
    </apex:form>
</apex:page>

Apex controller:

public class sample
{
    public sample(ApexPages.StandardController controller)
    {

    }  
   
    //Dynamic creation of Section Header
    public Component.Apex.SectionHeader getsecHead()
    {
        Component.Apex.SectionHeader sh = new Component.Apex.SectionHeader();
        sh.title = ‘Create Account’;
        return sh;
    } 
     
    //Dynamic creation of pageBlock
    public Component.Apex.PageBlock getformSample()
    {
        Component.Apex.PageBlock pageBlock = new Component.Apex.PageBlock();
     
        //Dynamic creation of inputField
        Component.Apex.InputField name = new Component.Apex.InputField();
        name.expressions.value = ‘{!Account.Name}’;
        name.id = ‘name’;
        Component.Apex.OutputLabel label = new Component.Apex.OutputLabel();
        label.value = ‘Name’;
        label.for = ‘name’;
       
        //Dynamic creation of CommandButton
        Component.Apex.CommandButton save = new Component.Apex.CommandButton();
        save.value = ‘Save’;
        save.expressions.action = ‘{!Save}’;

        pageBlock.childComponents.add(label);
        pageBlock.childComponents.add(name);
        pageBlock.childComponents.add(save);
        return pageBlock;
    }
   
}

Output: