e761. Getting and Setting the Selected Item in a JComboBox Component
// Create a read-only combobox
String[] items = {"item1", "item2"};
JComboBox cb = new JComboBox(items);
// Get current value
Object obj = cb.getSelectedItem(); // item1
// Set a new value
cb.setSelectedItem("item2");
obj = cb.getSelectedItem(); // item2
// If the new value is not in the list of valid items, the call is ignored
cb.setSelectedItem("item3");
obj = cb.getSelectedItem(); // item2
// However, if the combobox is editable, the new value can be any value
cb.setEditable(true);
cb.setSelectedItem("item3");
obj = cb.getSelectedItem(); // item3
// Create a read-only combobox
String[] items = {"item1", "item2"};
JComboBox cb = new JComboBox(items);
// Get current value
Object obj = cb.getSelectedItem(); // item1
// Set a new value
cb.setSelectedItem("item2");
obj = cb.getSelectedItem(); // item2
// If the new value is not in the list of valid items, the call is ignored
cb.setSelectedItem("item3");
obj = cb.getSelectedItem(); // item2
// However, if the combobox is editable, the new value can be any value
cb.setEditable(true);
cb.setSelectedItem("item3");
obj = cb.getSelectedItem(); // item3
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