这个压缩包里的都是超级经典的java例子

				
				
				
				Making a Cell Visible in a JTable Component (Java Developers Almanac Example)
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				The Java Developers Almanac 1.4
				
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				    javax.swing.table
				         [62 examples]
				    
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				        Scrolling
				             [4 examples]
				            
				
				  e947. Making a Cell Visible in a JTable Component
				
				
				
				    // Ensure that the cell (1,2) is visible
				    int rowIndex = 1;
				    int vColIndex = 2;
				    scrollToVisible(table, rowIndex, vColIndex);
				    
				    // Assumes table is contained in a JScrollPane. Scrolls the
				    // cell (rowIndex, vColIndex) so that it is visible within the viewport.
				    public void scrollToVisible(JTable table, int rowIndex, int vColIndex) {
				        if (!(table.getParent() instanceof JViewport)) {
				            return;
				        }
				        JViewport viewport = (JViewport)table.getParent();
				    
				        // This rectangle is relative to the table where the
				        // northwest corner of cell (0,0) is always (0,0).
				        Rectangle rect = table.getCellRect(rowIndex, vColIndex, true);
				    
				        // The location of the viewport relative to the table
				        Point pt = viewport.getViewPosition();
				    
				        // Translate the cell location so that it is relative
				        // to the view, assuming the northwest corner of the
				        // view is (0,0)
				        rect.setLocation(rect.x-pt.x, rect.y-pt.y);
				    
				        // Scroll the area into view
				        viewport.scrollRectToVisible(rect);
				
				
				
				
				             Related Examples
				
				
				
				
				e945. 
				    Creating a Scrollable JTable Component
				
				
				
				e946. 
				    Determining If a Cell Is Visible in a JTable Component
				
				
				
				e948. 
				    Scrolling a Cell to the Center of a JTable Component
				
				
				
				
				
				
				
				
				        See also: 
				
				    Cells
				  
				
				
				    Column Heads
				  
				
				
				    Columns
				  
				
				
				    Editing
				  
				
				
				    Events
				  
				
				
				    Layout
				  
				
				
				    Rows
				  
				
				
				    Selection
				  
				
				
				    Sorting
				  
				
				
				    Table Model
				  
				
				
				    Tool Tips
				  
				
				
				
				
				
				
				
				
				
				© 2002 Addison-Wesley.