public interface TableModel
TableModel interface specifies the methods the
JTable will use to interrogate a tabular data model.
The JTable can be set up to display any data
model which implements the
TableModel interface with a couple of lines of code:
TableModel myData = new MyTableModel();
JTable table = new JTable(myData);
For further documentation, see Creating a Table Model in The Java Tutorial.
JTable| Modifier and Type | Method and Description |
|---|---|
void |
addTableModelListener(TableModelListener l)
Adds a listener to the list that is notified each time a change
to the data model occurs.
|
Class<?> |
getColumnClass(int columnIndex)
Returns the most specific superclass for all the cell values
in the column.
|
int |
getColumnCount()
Returns the number of columns in the model.
|
String |
getColumnName(int columnIndex)
Returns the name of the column at
columnIndex. |
int |
getRowCount()
Returns the number of rows in the model.
|
Object |
getValueAt(int rowIndex,
int columnIndex)
Returns the value for the cell at
columnIndex and
rowIndex. |
boolean |
isCellEditable(int rowIndex,
int columnIndex)
Returns true if the cell at
rowIndex and
columnIndex
is editable. |
void |
removeTableModelListener(TableModelListener l)
Removes a listener from the list that is notified each time a
change to the data model occurs.
|
void |
setValueAt(Object aValue,
int rowIndex,
int columnIndex)
Sets the value in the cell at
columnIndex and
rowIndex to aValue. |
int getRowCount()
JTable uses this method to determine how many rows it
should display. This method should be quick, as it
is called frequently during rendering.getColumnCount()int getColumnCount()
JTable uses this method to determine how many columns it
should create and display by default.getRowCount()String getColumnName(int columnIndex)
columnIndex. This is used
to initialize the table's column header name. Note: this name does
not need to be unique; two columns in a table can have the same name.columnIndex - the index of the columnClass<?> getColumnClass(int columnIndex)
JTable to set up a
default renderer and editor for the column.columnIndex - the index of the columnboolean isCellEditable(int rowIndex,
int columnIndex)
rowIndex and
columnIndex
is editable. Otherwise, setValueAt on the cell will not
change the value of that cell.rowIndex - the row whose value to be queriedcolumnIndex - the column whose value to be queriedsetValueAt(java.lang.Object, int, int)Object getValueAt(int rowIndex, int columnIndex)
columnIndex and
rowIndex.rowIndex - the row whose value is to be queriedcolumnIndex - the column whose value is to be queriedvoid setValueAt(Object aValue, int rowIndex, int columnIndex)
columnIndex and
rowIndex to aValue.aValue - the new valuerowIndex - the row whose value is to be changedcolumnIndex - the column whose value is to be changedgetValueAt(int, int),
isCellEditable(int, int)void addTableModelListener(TableModelListener l)
l - the TableModelListenervoid removeTableModelListener(TableModelListener l)
l - the TableModelListener Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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