jtable

问题 I'm trying to populate a JTable with POJOS that I've extracted using Gson(). Using the debugger, or by printing the values to the console using toString(), I can see that the mapping of the objects was successful. My problem lies with populating my custom Jtable with the objects. Problem: My GUI contains a button that takes a search field, and sends it to an API which returns a response in JSON, which I map correctly but I do not know how to get the data into the table. What I've tried : The

问题 I´m rather new to Java and programming itself, so excuse me for the question. What I´m trying to do is the following: I´m making a bookkeeping program. On the column where the income/outcome is displayed, I want it so when the user enters a negative number (eg. -1.150€), the number turns red( or any color really, but red is what most bookkeeping programs use). only that specific cell on that column only. I have not started with a code yet so I cannot input one here. I also do not need it to

问题 The code I'm referencing is proprietary and requires a multicast server, so I can't post an SSCCE snippet. I understand this may preclude any helpful insight which would elicit viable responses... I'm compiling with Java 7 u 9. I'm currently using a JTable in a GUI app that listens to multicast data, and displays it as it arrives. When scrolling the table or resizing columns, the app responds excruciatingly slow. I thought I structured my code appropriately. I used a wrapper class, and in it

问题 The code I'm referencing is proprietary and requires a multicast server, so I can't post an SSCCE snippet. I understand this may preclude any helpful insight which would elicit viable responses... I'm compiling with Java 7 u 9. I'm currently using a JTable in a GUI app that listens to multicast data, and displays it as it arrives. When scrolling the table or resizing columns, the app responds excruciatingly slow. I thought I structured my code appropriately. I used a wrapper class, and in it

问题 I'm working developing a system and I need to create a special table take a look: Row headers and column titles are always static. Is it possible to create that kind of table with Netbeans? 回答1: Please follow the link about how to add Nested Table Header . 来源： https://stackoverflow.com/questions/13852886/jtable-with-merged-column-headers

问题 I set the renderer to the checkbox on jtable using following code Object[] ColumnData = {"Sr No","Ward Name","Total voters","Action"}; Object[][] RawData=null; // in loop model.insertRow(x, new Object[]{ key,ward_name_var,total_vot_var,new Object[]{o}}); model.setValueAt(o,x,3); tblWard.setModel(model); Setchk(tblWard,3,checkbox); // by calling this method which contains following private void Setchk(JTable jTable1, int i, JCheckBox checkbox) { jTable1.getColumnModel().getColumn(i)

问题 I have JTable like this String[] columnTitles=new String[]{"Command","Offset","Type","Value","Units","R/W"}; Object[][] data=new Object[20][7]; for(int i=0;i<ROWS_NUMBER;i++){ cmbName=RootData.getRootData().getMessageContainer().getComboBoxNameTable(); cmbOffset=RootData.getRootData().getMessageContainer().getComboBoxOffsetTable(); txtType=new JTextField(); txtValue=new JTextField(); txtUnit=new JTextField(); cmbRW=new JComboBox(new String[]{"Read","Write"}); editorsCommand.add(new

问题 I have JTable like this String[] columnTitles=new String[]{"Command","Offset","Type","Value","Units","R/W"}; Object[][] data=new Object[20][7]; for(int i=0;i<ROWS_NUMBER;i++){ cmbName=RootData.getRootData().getMessageContainer().getComboBoxNameTable(); cmbOffset=RootData.getRootData().getMessageContainer().getComboBoxOffsetTable(); txtType=new JTextField(); txtValue=new JTextField(); txtUnit=new JTextField(); cmbRW=new JComboBox(new String[]{"Read","Write"}); editorsCommand.add(new

问题 i want to make my JCheckboxes in a JTable bigger (for Touchscreen), but it doesn't change the size. I tried it with setPrefferedSize setSize What should I do?.. 回答1: I assume you mean you want a bigger check box. If so then you need to create images to represent the unselected and selected icons of the check box. Then you can create a renderer and editor using these icons. Finally you would need to increase the height of each row in the table. The code might look something like: Icon normal =

问题 I have a JFrame which holds a JXTable (from SwingX dependency) and a JButton . Once I click the JButton the table should get updated each time. In my case it gets updated only at the first time. Other events also get triggered on the button click (which happens each time I click the button). Only the table is not refreshed with the new rows added. I am using DeafultTableModel and have tried (explicit trigger) all suggested methods like repaint , fireTableDataChanged etc. Can someone please