What is JList in Java?
JList is part of Java Swing package . JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class. JList is a easy way to display an array of Vectors .
Which method of JList class returns the number of rows visible?
You can use getFirstVisibleIndex and getLastVisibleIndex methods of JList to calculate number of items it displays when visible. If size of viewport in scroll pane changes then the number of visible rows will also change.
What is ListModel in Java?
public interface ListModel 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.
How do you add to a JList in Java?
7 Answers. Populate the JList with a DefaultListModel, not a vector, and have the model visible in the class. Then simply call addElement on the list model to add items to it.
How do I add a listener to JList?
You may also want to do it with the Enter key pressed by adding a KeyListener: jlist. addKeyListener(new KeyAdapter(){ public void keyPressed(KeyEvent e){ if (e. getKeyCode() == KeyEvent.
What is the jlist component in Java Swing?
JList is part of Java Swing package . JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class. JList is a easy way to display an array of Vectors .
What do you need to know about jlist in Java?
JList is part of Java Swing package . JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class. JList is a easy way to display an array of Vectors . Constructor for JList are : JList(E [ ] l) : creates an new list with the elements of the array.
Is there way to sort jlist in Java?
Java technology programmers often use the javax.swing.JList component to provide list views of similar data, whether it be a phone contact list or a grocery list. Despite the convenience of this user interface (UI) component, a JList doesn’t sort its elements.
Is there a default listmodel in javax.swing?
Neither the ListModel interface nor the javax.swing.DefaultListModel class provides sorted data. Instead, the default model provides its content in the same order as you enter it.