ListModel (Java SE 12 & JDK 12 )

Type Parameters:

E - the type of the elements of this model

All Known Subinterfaces:

ComboBoxModel<E>, MutableComboBoxModel<E>

All Known Implementing Classes:

AbstractListModel, BasicDirectoryModel, DefaultComboBoxModel, DefaultListModel, MetalFileChooserUI.DirectoryComboBoxModel, MetalFileChooserUI.FilterComboBoxModel
```
public interface ListModel<E>
```
This interface defines the methods components like JList use to get the value of each cell in a list and the length of the list. Logically the model is a vector, indices vary from 0 to ListDataModel.getSize() - 1. Any change to the contents or length of the data model must be reported to all of the ListDataListeners.

Since:

1.2

See Also:

JList

Method Summary

Modifier and Type	Method	Description
`void`	`addListDataListener(ListDataListener l)`	Adds a listener to the list that's notified each time a change to the data model occurs.
`E`	`getElementAt(int index)`	Returns the value at the specified index.
`int`	`getSize()`	Returns the length of the list.
`void`	`removeListDataListener(ListDataListener l)`	Removes a listener from the list that's notified each time a change to the data model occurs.

- Method Detail
  - getSize
```
int getSize()
```
    Returns the length of the list.
    
    Returns:
    
    the length of the list
  - getElementAt
```
E getElementAt(int index)
```
    Returns the value at the specified index.
    
    Parameters:
    
    index - the requested index
    
    Returns:
    
    the value at index
  - addListDataListener
```
void addListDataListener(ListDataListener l)
```
    Adds a listener to the list that's notified each time a change to the data model occurs.
    
    Parameters:
    
    l - the ListDataListener to be added
  - removeListDataListener
```
void removeListDataListener(ListDataListener l)
```
    Removes a listener from the list that's notified each time a change to the data model occurs.
    
    Parameters:
    
    l - the ListDataListener to be removed