Swing JTable und Vector

[KingOfExceptions]

Also zu allererst:

Ich weiß, dass man Vectoren nicht benutzen soll. Mich würde aber interessieren, wieso sich bei mir dieses Problem auftut.

Ich mache ein JTable und übergebe diesem, Strings aus anderen Objekten:

Vector<String> rowData = new Vector<String>(50, 5);
				Vector<String> columnNames = new Vector<String>(50, 5);
				for (int x = 0; x < creator.getClients().size(); x++)
				{
					rowData.add(creator.getClients().elementAt(x).name);
					rowData.add(Integer.toString(creator.getClients()
							.elementAt(x).datumVertrag.tag)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.monat)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.jahr));
					rowData.add(Integer.toString(creator.getClients()
							.elementAt(x).anzahlBoxen));
				}

				columnNames.add("Nom");
				columnNames.add("Date du contrat: ");
				columnNames.add("Nombre de box: ");
				JTable table = new JTable(rowData, columnNames);
				mainPanel4.add(new JScrollPane(table));
				add(mainPanel4);
				validate();
				repaint();

Diese Objekte lassen sich alle casten, siehe auch die Generics. Eclipse gibt mir keine Fehler aus, erst wenn ich das Programm starte. Aus der Exception kann ich nicht viel herauslesen, ich hatte noch nie so eine Exception. Aber gut, hier für die Profis :

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Vector
	at javax.swing.table.DefaultTableModel.justifyRows(DefaultTableModel.java:268)
	at javax.swing.table.DefaultTableModel.setDataVector(DefaultTableModel.java:224)
	at javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:159)
	at javax.swing.JTable.<init>(JTable.java:668)
	at renouvBoxHelper.GUIMaker$3.actionPerformed(GUIMaker.java:120)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
	at java.awt.Component.processMouseEvent(Component.java:6505)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
	at java.awt.Component.processEvent(Component.java:6270)
	at java.awt.Container.processEvent(Container.java:2229)
	at java.awt.Component.dispatchEventImpl(Component.java:4861)
	at java.awt.Container.dispatchEventImpl(Container.java:2287)
	at java.awt.Component.dispatchEvent(Component.java:4687)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
	at java.awt.Container.dispatchEventImpl(Container.java:2273)
	at java.awt.Window.dispatchEventImpl(Window.java:2719)
	at java.awt.Component.dispatchEvent(Component.java:4687)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:703)
	at java.awt.EventQueue.access$000(EventQueue.java:102)
	at java.awt.EventQueue$3.run(EventQueue.java:662)
	at java.awt.EventQueue$3.run(EventQueue.java:660)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.awt.EventQueue$4.run(EventQueue.java:676)
	at java.awt.EventQueue$4.run(EventQueue.java:674)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:673)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

btw: diese zeile hier:

at renouvBoxHelper.GUIMaker$3.actionPerformed(GUIMaker.java:120)

entspricht:

JTable table = new JTable(rowData, columnNames);

 

[Marco13]

Das muss ein Vector mit Vectors sein:

Vector<Vector<String>> alleZeilen = new Vector<Vector<String>>();

Vector<String> eineZeile = new Vector<String>();
eineZeile.add(eintragSpalte0);
eineZeile.add(eintragSpalte1);
alleZeilen.add(eineZeile);

Vector<String> nochEineZeile = new Vector<String>();
nochEineZeile.add(eintragSpalte0);
nochEineZeile.add(eintragSpalte1);
alleZeilen.add(nochEineZeile);

...

 

[eRaaaa]

JTable (Java Platform SE 6)

public JTable(Vector rowData,
Vector columnNames)
Constructs a JTable to display the values in the Vector of Vectors, rowData, with column names, columnNames. The Vectors contained in rowData should contain the values for that row. In other words, the value of the cell at row 1, column 5 can be obtained with the following code:
((Vector)rowData.elementAt(1)).elementAt(5);

 

[KingOfExceptions]

Und wenn ich jetzt drei Spalten habe ? ;(

Bin jetzt hier:

Vector<String> rowData1 = new Vector<String>(50, 5);
				Vector<String> rowData2=new Vector<String>(50,5);
				Vector<String> rowData3=new Vector<String>(50,5);
				Vector<Vector<String>> rowData=new Vector<Vector<String>>(50,5);
				
				Vector<String> columnNames = new Vector<String>(50, 5);
				for (int x = 0; x < creator.getClients().size(); x++)
				{
					rowData1.add(creator.getClients().elementAt(x).name);
					rowData2.add(Integer.toString(creator.getClients()
							.elementAt(x).datumVertrag.tag)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.monat)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.jahr));
					rowData3.add(Integer.toString(creator.getClients()
							.elementAt(x).anzahlBoxen));
				}

				rowData.add(rowData1);
				rowData.add(rowData2);
				rowData.add(rowData3);

aber die reihenfolge ist falsch... er macht alles in eine spalte anstatt in drei zeilen :shock:

 

[KingOfExceptions]

Hab es jetzt selbst hingekriegt:

Vector<Vector<String>> rowData=new Vector<Vector<String>>(50,5);
				
				Vector<String> columnNames = new Vector<String>(50, 5);
				for (int x = 0; x < creator.getClients().size(); x++)
				{
					Vector<String> rowData1 = new Vector<String>(50, 5);
					rowData1.add(creator.getClients().elementAt(x).name);
					rowData1.add(Integer.toString(creator.getClients()
							.elementAt(x).datumVertrag.tag)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.monat)
							+ Integer.toString(creator.getClients()
									.elementAt(x).datumVertrag.jahr));
					rowData1.add(Integer.toString(creator.getClients()
							.elementAt(x).anzahlBoxen));
					rowData.add(rowData1);
				}
				
				columnNames.add("Nom");
				columnNames.add("Date du contrat: ");
				columnNames.add("Nombre de box: ");
				JTable table = new JTable(rowData, columnNames);
				mainPanel4.add(new JScrollPane(table));
				add(mainPanel4);
				validate();
				repaint();