Java JComboBox

The object of Choice class is used to show popup menu of choices. Choice selected by user is shown on the top of a menu. It inherits JComponent class.

JComboBox class declaration

Let's see the declaration for javax.swing.JComboBox class.

public class JComboBox extends JComponent implements ItemSelectable, ListDataListener, ActionListener, Accessible

Commonly used Constructors:

Constructor Description
JComboBox() Creates a JComboBox with a default data model.
JComboBox(Object[] items) Creates a JComboBox that contains the elements in the specified array.
JComboBox(Vector items) Creates a JComboBox that contains the elements in the specified Vector.

Commonly used Methods:

Methods Description
void addItem(Object anObject) It is used to add an item to the item list.
void removeItem(Object anObject) It is used to delete an item to the item list.
void removeAllItems() It is used to remove all the items from the list.
void setEditable(boolean b) It is used to determine whether the JComboBox is editable.
void addActionListener(ActionListener a) It is used to add the ActionListener.
void addItemListener(ItemListener i) It is used to add the ItemListener.

Java JComboBox Example

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Output

Java JComboBox Example with ActionListener

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Output


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