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## org.jfree.ui.about
Class SystemPropertiesTableModel

    java.lang.Object
      javax.swing.table.AbstractTableModel
          org.jfree.ui.SortableTableModel
              org.jfree.ui.about.SystemPropertiesTableModel

All Implemented Interfaces:
  java.io.Serializable, javax.swing.table.TableModel

    public class SystemPropertiesTableModel

extends SortableTableModel

A sortable table model containing the system properties.

Author:
  David Gilbert
See Also:
  Serialized Form

Nested Class Summary
`protected static class` | `SystemPropertiesTableModel.SystemProperty` Useful class for holding the name and value of a system property.
`protected static class` | `SystemPropertiesTableModel.SystemPropertyComparator` A class for comparing SystemProperty objects.

Field Summary

Fields inherited from class javax.swing.table.AbstractTableModel
`listenerList`

Constructor Summary
`SystemPropertiesTableModel()` Creates a new table model using the properties of the current Java Virtual Machine.

Method Summary
`int` | `getColumnCount()` Returns the number of columns in the table model.
`java.lang.String` | `getColumnName(int column)` Returns the name of the specified column.
`int` | `getRowCount()` Returns the number of rows in the table model (that is, the number of system properties).
`java.lang.Object` | `getValueAt(int row, int column)` Returns the value at the specified row and column.
`boolean` | `isSortable(int column)` Returns true for the first column, and false otherwise - sorting is only allowed on the first column.
`void` | `sortByColumn(int column, boolean ascending)` Sorts on the specified column.

Methods inherited from class org.jfree.ui.SortableTableModel
`getSortingColumn, isAscending, setAscending`

Methods inherited from class javax.swing.table.AbstractTableModel
`addTableModelListener, findColumn, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, getColumnClass, getListeners, getTableModelListeners, isCellEditable, removeTableModelListener, setValueAt`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SystemPropertiesTableModel

    public SystemPropertiesTableModel()

  Creates a new table model using the properties of the current Java Virtual Machine.

Method Detail

### isSortable

    public boolean isSortable(int column)

  Returns true for the first column, and false otherwise - sorting is only allowed on the first column.

  Overrides:
    `isSortable` in class `SortableTableModel`
  Parameters:
    `column` - the column index.
  Returns:
    true for column 0, and false for all other columns.

### getRowCount

    public int getRowCount()

  Returns the number of rows in the table model (that is, the number of system properties).

  Returns:
    the row count.

### getColumnCount

    public int getColumnCount()

  Returns the number of columns in the table model. In this case, there are two columns: one for the property name, and one for the property value.

  Returns:
    the column count (always 2 in this case).

### getColumnName

    public java.lang.String getColumnName(int column)

  Returns the name of the specified column.

  Specified by:
    `getColumnName` in interface `javax.swing.table.TableModel`
  Overrides:
    `getColumnName` in class `javax.swing.table.AbstractTableModel`
  Parameters:
    `column` - the column index.
  Returns:
    the column name.

### getValueAt

    public java.lang.Object getValueAt(int row,
                                       int column)

  Returns the value at the specified row and column. This method supports the TableModel interface.

  Parameters:
    `row` - the row index.
    `column` - the column index.
  Returns:
    the value.

### sortByColumn

    public void sortByColumn(int column,
                             boolean ascending)

  Sorts on the specified column.

  Overrides:
    `sortByColumn` in class `SortableTableModel`
  Parameters:
    `column` - the column index.
    `ascending` - a flag that controls the sort order.

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