jtable

问题 How can I enable hyperlink for every record in the JTable ? What I want to do is such that a user can click on the hyperlink which will then display the information they can edit/update. Alternatively how can I enable in place editing of the table data? Another question is i am currently using the following way to display different screen. But this is not an elegant way i understand we should use cardlayout but how exactly to go about it? mainPanel.setVisible(false); createBlogEntryPanel

问题 For example I have a Table that I want to get text that's in the first column and store it in an ArrayList . 回答1: Java Tables often use the TableModel interface for storage. You can get the a particular value via: myJTable.getModel().getValueAt(rowIndex, columnIndex); More on that: Sun's Swing Table Tutorial 回答2: public static void main(String[] args) { try { final JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Container cp = frame.getContentPane(); cp

问题 For example I have a Table that I want to get text that's in the first column and store it in an ArrayList . 回答1: Java Tables often use the TableModel interface for storage. You can get the a particular value via: myJTable.getModel().getValueAt(rowIndex, columnIndex); More on that: Sun's Swing Table Tutorial 回答2: public static void main(String[] args) { try { final JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Container cp = frame.getContentPane(); cp

问题 so i want my JTable to render everytime a value in a variable is changed however this is not taking place, the table is only getting rendered either when I click on it, or move it out of view then back in. Any suggestions? I am using a custom TableCellRender as posted below. import java.awt.Color; import java.awt.Component; import javax.swing.JLabel; import javax.swing.JTable; import javax.swing.SwingConstants; import javax.swing.table.TableCellRenderer; public class myRenderer extends JLabel

问题 I've created a simple JTable with check box like below: DefaultTableModel model = new DefaultTableModel(); jTable1.setModel(model); model.addColumn("No:", no1); model.addColumn("Remark", remark1); model.addColumn("Color", colors1); model.addColumn("Done"); TableColumn col1 = jTable1.getColumnModel().getColumn(0); col1.setPreferredWidth(1); TableColumn col4 = jTable1.getColumnModel().getColumn(3); col4.setCellEditor(jTable1.getDefaultEditor(Boolean.class)); col4.setCellRenderer(jTable1

问题 I've created a simple JTable with check box like below: DefaultTableModel model = new DefaultTableModel(); jTable1.setModel(model); model.addColumn("No:", no1); model.addColumn("Remark", remark1); model.addColumn("Color", colors1); model.addColumn("Done"); TableColumn col1 = jTable1.getColumnModel().getColumn(0); col1.setPreferredWidth(1); TableColumn col4 = jTable1.getColumnModel().getColumn(3); col4.setCellEditor(jTable1.getDefaultEditor(Boolean.class)); col4.setCellRenderer(jTable1

问题 Unlike most data structures, JTable does not have isEmpty() method. So how can we know if a given JTable doesn't contain any value? 回答1: This will return actual number of rows, irrespective of any filters on table. int count= jTable.getModel().getRowCount(); jTable.getRowCount() will return only visible row count. So to check isEmpty() then it's better to use getRowCount() on model. public static boolean isEmpty(JTable jTable) { if (jTable != null && jTable.getModel() != null) { return jTable

问题 i am trying to write my list to jtable in abstract model and then its return to me this error. In my opinion it could be cause by list format? name and amount are in wrong place. This is my full error message: Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: class com.google.gson.internal.LinkedTreeMap cannot be cast to class Model.Medicine (com.google.gson.internal.LinkedTreeMap and Model.Medicine are in unnamed module of loader 'app') There is a code: This is mine

问题 I am developing small desktop application in java and using the Netbeans IDE . I want read data from JTextField and insert it in the JTable character by character. But issue is that JTableHeader is not available(means that header null). Suggest me some way to resolve this problem. 回答1: But issue is that JTableHeader is not available The table header is a separate component and is only created when you add the table to a JScrollPane. So instead of using code like: panel.add( table ); The logic

问题 I am developing small desktop application in java and using the Netbeans IDE . I want read data from JTextField and insert it in the JTable character by character. But issue is that JTableHeader is not available(means that header null). Suggest me some way to resolve this problem. 回答1: But issue is that JTableHeader is not available The table header is a separate component and is only created when you add the table to a JScrollPane. So instead of using code like: panel.add( table ); The logic