Databases
StackOverflow2013
Postsdbo
POHaving trouble adding objects to JList to display on scrollpane
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHaving trouble adding objects to JList to display on scrollpane
    primarykey
    data
    text
    <p>I've worked at creating a defaultlistcellrender for an object that i have made but so far it's proving very difficult to add objects to JList. I am attaching the code for any suggestions. Thanks!</p> <pre><code>public class JTabbedPaneTester extends JFrame { private List&lt;Human&gt; members = new ArrayList&lt;Human&gt;(); private JList newbie = new JList(); private DefaultListModel model = new DefaultListModel(); public JTabbedPaneTester() throws FileNotFoundException { super("JTabbedPane Demo"); JTabbedPane tabbedPane = new JTabbedPane(); JPanel gladiator = new JPanel(); getContentPane().add(gladiator); tabbedPane.addTab("Gladiator", null, Gladiator, ""); Box listOfPlayers = Box.createVerticalBox(); listOfPlayers.add(Box.createRigidArea(new Dimension(100,100))); listOfPlayers.setBorder(new TitledBorder("List of Players")); JScrollPane playerViewer = new JScrollPane(); playerViewer.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS); listOfPlayers.add(playerViewer); JButton AddIndividual = new JButton("Add a Player"); listOfPlayers.add(addIndividual); gladiator.add(listOfPlayers); final HumanListModel modelx = new HumanListModel(); final JTable newbiex = new JTable(modelx); newbiex.setDefaultRenderer(Human.class, new HumanRenderer()); playerViewer.setViewportView(newbiex); addIndividual.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { Human temp; try { temp = new Human(); modelx.addHuman(temp); } catch (FileNotFoundException e) { e.printStackTrace(); } } }); add(tabbedPane); } } </code></pre> <p>Here is the renderer someone on here nicely helped me with</p> <pre><code>class HumanRenderer extends DefaultListCellRenderer { public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) { JLabel label = new JLabel(); if (value != null) { Human human = (Human) value; label.setText(human.getSurname() + ", " + human.getFirstName()); } return label; } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USIron
    1. USIron
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COI'm not even going to look at the code until you fix the variable names. Variable names should not start with an upper case character. Also don't leave a blank line between every line of code. Too much scrolling is required to see all the code at one glance.
      singulars
      1. POHaving trouble adding objects to JList to display on scrollpane
      1. UScamickr
    2. CO1) For better help sooner, post an [SSCCE](http://sscce.org/). 2) A single blank line of white space is always enough. 3) Please learn common [Java naming conventions](http://java.sun.com/docs/books/jls/second_edition/html/names.doc.html#73307) (specifically the case used for the names) for class, method & attribute names & use them consistently. 4) Don't extend frame or other top level containers. Instead create & use an instance of one.
      singulars
      1. POHaving trouble adding objects to JList to display on scrollpane
      1. USAndrew Thompson
    3. COYou're shadowing the model variable by redeclaring it in the constructor.
      singulars
      1. POHaving trouble adding objects to JList to display on scrollpane
      1. USHovercraft Full Of Eels
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload