Adding and Removing an Item in a JList Component
The default model for a list does not allow the addition and removal
of items. The list must be created with a DefaultListModel.
This method replaces an item:
These methods are used to remove items:
// Create a list that allows adds and removes
DefaultListModel model = new DefaultListModel();
JList list = new JList(model);
// Initialize the list with items
String[] items = {"A", "B", "C", "D"};
for (int i=0; i<items.length; i++) {
model.add(i, items[i]);
}
// Append an item
int pos = list.getModel().getSize();
model.add(pos, "E");
// Insert an item at the beginning
pos = 0;
model.add(pos, "a");
// Replace the 2nd item
pos = 1;
model.set(pos, "b");
// Remove the first item
pos = 0;
model.remove(pos);
// Remove the last item
pos = model.getSize()-1;
if (pos >= 0) {
model.remove(pos);
}
// Remove all items
model.clear();
i having problem when i remove all item in Jlist when ever i click on JList.... so how can i do ?