Differences

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--- swing:lists [2018/04/13 08:42] – [Listening Interface] gthanos
+++ swing:lists [Unknown date] (current) – external edit (Unknown date) 127.0.0.1
@@ Line 35: / Line 35: @@
 <code java ListDemo.java>
 import java.awt.*;
 import java.awt.event.*;
@@ Line 42: / Line 41: @@
 /* ListDemo.java requires no other files. */
+@SuppressWarnings("serial")
 public class ListDemo extends JPanel
             implements ListSelectionListener {
-  private JList list;
+  private JList<String> list;
-  private DefaultListModel listModel;
+  private DefaultListModel<String> listModel;
   private static final String hireString = "Hire";
@@ Line 55: / Line 55: @@
     super(new BorderLayout());
-    listModel = new DefaultListModel();
+    listModel = new DefaultListModel<String>();
     listModel.addElement("Jane Doe");
     listModel.addElement("John Smith");
@@ Line 61: / Line 61: @@
     //Create the list and put it in a scroll pane.
-    list = new JList(listModel);
+    list = new JList<>(listModel);
     list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     list.setSelectedIndex(0);
@@ Line 196: / Line 196: @@
     }
+    /* if textField is empty returns true */
     private boolean handleEmptyTextField(DocumentEvent e) {
       if (e.getDocument().getLength() <= 0) {