Determine if there are any selected items : JList Selection « Swing « Java Tutorial

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Java Tutorial » Swing » JList Selection

14. 43. 16. Determine if there are any selected items


import javax.swing.JList;



public class Main {

  public static void main(String[] argv) throws Exception {

    String[] items = { "A", "B", "C", "D" };

    JList list = new JList(items);



    boolean anySelected = !list.isSelectionEmpty();



  }

}

14. 43. JList Selection
	14. 43. 1.	List selection event
	14. 43. 2.	A single-selection JList.
	14. 43. 3.	Listening for Changes to the Items in a JList Component
	14. 43. 4.	Listening for Changes to the Selection in a JList Component
	14. 43. 5.	Setting the Selection Mode of a JList Component
	14. 43. 6.	The selected items must be in a contiguous range
	14. 43. 7.	Multiple ranges of selected items are allowed
	14. 43. 8.	Setting the Selected Items in a JList Component
	14. 43. 9.	Select all the items
	14. 43. 10.	Clear all selections
	14. 43. 11.	Select the first item
	14. 43. 12.	Add another selection - the third item
	14. 43. 13.	Deselect the first item
	14. 43. 14.	Getting the Selected Items in a JList Component
	14. 43. 15.	Get the index of the last selected item
	14. 43. 16.	Determine if there are any selected items

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