Inner Wrapper Class in Apex Class

Hi,

I have seen a lot of questions regarding inner class in a apex class in developer community and issues that can be solved by use of inner class. So here I would like to show a problem which can also be solved by inner class.

Syntax of inner class :

public class myOuterClass {
   // Additional myOuterClass code here  
    
   class myInnerClass {
     // myInnerClass code here  
    
   }
}

Problem :
http://boards.developerforce.com/t5/General-Development/When-i-click-on-add-button-i-need-to-display-one-more-textbox/td-p/286261

When i click on add button i need to display one more textbox

Visual Force Page :

<apex:page controller="addTextrBox">
  <apex:Form>
       <apex:commandButton Value="Add Text Box" action="{!addTextBox}"/>
       <br></br>
       <apex:repeat value="{!listvalueOfTextBox}" var="item" rendered="{!IF(listvalueOfTextBox.size > 0 , true , false)}" >
           <apex:outPutLabel value="{!item.textBoxLabel}">
           </apex:outPutLabel>
           <apex:inputText value="{!item.textBoxValue}"/>
           <br></br>
       </apex:repeat>
   </apex:Form>
</apex:page>

Apex Controller Class

public class addTextrBox 
{

    public List<textBoxClass> listValueOfTextBox
        { 
          get; 
          set; 
        }    
    public addTextrBox ()
        {
            listvalueOfTextBox = new List<textBoxClass>();
        }
    public PageReference addTextBox() 
        {
            try
                {
                    listvalueOfTextBox.add(new textBoxClass('TextBox' + (listvalueOfTextBox.size() +  1)));
                }
            catch(Exception e)
                {
                    ApexPages.addMessages(e);
                }
            return ApexPages.currentPage();
        }

     public class textBoxClass
         {
             public string textBoxLabel{get;set;}
             public string textBoxValue{get;set;}
             
             public textBoxClass(String textBoxLabel)
                 {
                     this.textBoxLabel = textBoxLabel;
                 }
         }
}

Here textBoxClass is the inner class

In above problem we used iner class now any new text box is binded with a new item in the list listvalueOfTextBox which is of type textBoxClass.

inner class acan be intancitiated like this
outerClass.innerclass instanceOfinnerClass = new outerClass.innerclass();

in above case it will be like
addTextrBox.textBoxClass instaceOftextBoxClass = new addTextrBox.textBoxClass('Test text Box');

Regards