3. 设置表头:可以使用setTableHeader()方法设置表格的表头,也可以使用JTable.getTableHeader()方法获取表头对象并设置其属性。 4. 添加行和列:可以使用TableModel的方法添加行和列,包括addRow()添加一行、addColumn()添加一列等操作。 5. 获取和修改单元格数据:可以通过getValueAt()和setValueAt()方法获取和修改表...
步骤1: 创建JTable对象 首先,我们需要创建一个JTable对象来展示数据表格。你可以使用DefaultTableModel来创建一个简单的表格模型,并将其传递给JTable的构造函数。下面是示例代码: DefaultTableModelmodel=newDefaultTableModel();JTabletable=newJTable(model); 1. 2. 步骤2: 创建TableColumnModel对象 TableColumnModel...
All of JTables row based methods are in terms of the RowSorter, which is not necessarily the same as that of the underlying TableModel. For example, the selection is always in terms of JTable so that when using RowSorter you will need to convert using convertRowIndexToView or convertRow...
jtf6.setText((String)sm.getValueAt(rowNum, 5)); jb1=new JButton("修改"); jb2=new JButton("取消"); jp1=new JPanel(); jp2=new JPanel(); jp3=new JPanel(); //设置布局 jp1.setLayout(new GridLayout(6,1)); jp2.setLayout(new GridLayout(6,1)); //添加组件 jp1.add(jl1); j...
JTable table = new JTable(data, columnNames); There are two JTable constructors that directly accept data (SimpleTableDemo uses the first): JTable(Object[][] rowData, Object[] columnNames) JTable(Vector rowData, Vector columnNames) The advantage of these constructors is that they are ...
To get diagnostic information about the pipeline set the following environment variable prior to starting any GUI application from a command line console: J2D_TRACE_LEVEL=4. The tracing output will be printed into the console. Please provide this output when filing a bug or asking a question on...
rowData[2] = r.getCell(2).getStringCellValue(); tableModel.addRow(rowData); break; } } } } workbook.close(); } catch (IOException ex) { ex.printStackTrace(); } } }); // Show frame setVisible(true); } public static void main(String[] args) { ...
In the example above, we only built a single root node, so only a single row would be displayed in the table. You must create theTreeNodestructure for your tree. If your objects already have a tree structure, you can build a mirrored tree ofDefaultMutableTreeNodefrom them using the stati...
private JPanel tablePanel; private JButton dataButton, nextButton, prevButton, stakButton, globButton, heapButton, kernButton, extnButton, mmioButton, textButton; private JCheckBox asciiDisplayCheckBox; static final int VALUES_PER_ROW = 8; static final int NUMBER_OF_ROWS = 16;...
JTable jt = new JTable( new String[][] { {"John Smith", "Savings", "100.0"} }, new String[] { "Customer", "Account", "Balance"} ); JScrollPane scp = new JScrollPane(jt); getContentPane().add(scp, BorderLayout.CENTER);