<p>What is the difference between the selectitem and selectitems tags in jsf?</p>

The difference is exactly what you would expect. The
```
selectitem
```
tag adds a single item to the HTML list while
```
selectitems
```
adds multiple items.
From
JSF Core Tag Reference
:
SelectItem:
The
```
SelectItem
```
tag adds a child
```
UISelectItem
```
component to the component associated with the enclosing tag. In the HTML renderkit, this creates a single element. It can be used with any of the select tags in the JSF HTML tag library. The body content of this tag must be empty.
Example:
```
```
<h:selectOneMenu id="list1">
    <f:selectItem itemLabel="Option 1" itemValue="1"></f:selectItem>
</h:selectOneMenu>
```
```
HTML Output:
```
```
<select id="list1" name="list1" size="1">
    <option value="1">Option 1</option>
</select>
```
```
SelectItems:
The
```
SelectItems
```
tag adds a child
```
UISelectItems
```
component to the component associated with enclosing tag. You can use this tag to set a list of objects in your domain model as the options for a select component. The body content of this tag must be empty.
Example:
```
```
<h:selectManyListbox id="list">
    <f:selectItems value="#{optionBean.optionList}"></f:selectItem>
</h:selectManyListbox>
```
```
HTML Output:
```
```
<select id="list" name="list" multiple="true" size="-2147483648">
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
</select>
```
```