JTable 4 « JTable « Java Swing Q&A





1. Passing a float between jTables    coderanch.com

Well, this one line looks OK in isolation. By "semantic errors" I'm assuming you mean "syntax errors" reported by the compiler. Can you show us the actual error messages? And if the stack trace mentions a file and line number, perhaps you could show us the file and mark the offending line with a comment.

2. JTable    coderanch.com

I have 7 colums in a JTable. I want the first 6 to be uneditable and the last to be editable. How do you do this with a JTable? I had to extend it to get the functionality but I'm sure there must ba an easier way. class MyJTable extends JTable { MyJTable(String[][] data, String[] columnNames) { super(data, columnNames); } public ...

3. Calling JTable in another program, ends before finishing    coderanch.com

Hello! In this program i'm instantiating a JTable class and it comes up fine, but when i exit the JTable spread sheet, it jumps out of the program! Any ideas would be appreciated! Thanks! public static void main (String args[]) { try { SpreadSheet ss = new SpreadSheet(); <<<<<<<<<< } catch (Exception e) {} bldscr5 r1 = new bldscr5(); //load object ...

4. JTable suitability.    coderanch.com

I'm about to start work on a user interface that will allow a user to maintain a 'products' table that could contain many thousands of records. In the past I've populated a JTable with records, but I'm concerned about the amount of RAM this approach would potentially take if the user neglected to put in any sensible search criteria. I guess ...

5. JTable, rowVector, addNotify()    coderanch.com

Hello! Can anybody please help me! I'm creating a JTable. JTable table = new JTable(); Vector rows = new Vector(); Vector columns = new Vector() //specify column names //add a couple of rows table.setDataVector(rows, colums); And I have a method public Vector createClientElement(String name, String surname, String birthdt, String email, String mobile){ Vector v = new Vector(); v.addElement(name); v.addElement(surname); v.addElement(birthdt); v.addElement(email); ...

6. JTable    coderanch.com

7. Suggention on JTable    coderanch.com

8. Input....in JTable    coderanch.com

hi all I hav created one table in which 1st column is noneditable , 2nd column is editable with combo and third one is simple column with normal editable..... actually what i want to do is when my 2nd column gets focus it opens a small window or frame or dialog where it takes inputs from the user and multiply and ...

9. regarding JTable scrollabrs    coderanch.com

i have a small doubt in JTable,i want to display 10 number of rows, each row contains data(i can retrieve data from web services and displayed in Table cell)in that time i don't need scrollbars for that particular table, because of i am trying to print that table vertical scrollbars are coming in the printed page and aslo inside the vertical ...





10. Jtable - distinguish a visible area    coderanch.com

Basically, my data source is a piece of hardware connected throught a serial cable. This connection is very slow; it takes about 3 seconds to fetch current data which are constantly changing. Now, there is a need to watch different resources through the same cable as well, so when you run two instances of my app then the refresh takes 6 ...

11. JTable not working    coderanch.com

public void actionPerformed(ActionEvent e) { String[] columnNames = {"Property Name", "Start Position", "Length" }; String layoutName = e.getActionCommand(); Object[][] data = null; for (int i = 0; ((PropertyStore) Main.list.get(i)).LayoutName.equals(layoutName); i++) { PropertyStore propertyStore1 = (PropertyStore) Main.list.get(i); data = new Object[][]{{propertyStore1.PropertyName, propertyStore1.Start, propertyStore1.Length}}; } final JTable table = new JTable(data, columnNames); table.setPreferredScrollableViewportSize(new Dimension(500, 70)); frame.repaint(); frame.getContentPane().add(table); frame.validate(); frame.setSize(Integer.MAX_VALUE, Integer.MAX_VALUE); }

12. JTABLE    coderanch.com

similar to a excel, but very simpler than that. In each cell we have to store a literal integer value, a referential integer value (that is, a reference to the value stored at another cell) or an equation. A referential integer value is stored as a string that starts with the symbol "=" followed by the target cell address expressed as ...

13. ensureIndexVisible for JTable    coderanch.com

14. Working with Jtable    coderanch.com

Hello, I am java beginner and trying to write a Swing based application with an observer-pattern When the user clicks on the button named "showTable" after giving two Object rows values in Min and Max textfields (min < max all the time), the values of the table between Min and Max become yellow. This works properly. Now I need a help ...

15. White space in JTable    coderanch.com

Can someone look at the behaviour of the included code and explain why this happens: When you select (Toggle) a toggle button in a panel on the right side, the next time you click (or some subsequent time you click) on the left panel to select or redraw, some white open spaces occur? I'm having this problem in my project and ...

16. ? JTable getColumnName    coderanch.com

I can't figure out why the column names are not showing up on my table. Here is the code. package mytablemain; import javax.swing.table.AbstractTableModel; import java.util.List; import java.util.ArrayList; class MyTableModel extends AbstractTableModel { String[] columnNames = {"Testing", "This", "Table", "Model", "Today", "Six"}; protected final List dataList = new ArrayList(); public int getRowCount() { return dataList.size(); } public int getColumnCount() { return columnNames.length; ...





17. Doent wait for JTable to close.    coderanch.com

Hi, If the user selects yes then the dynamic jTable appears and then its supposed to wait until the user closes/finishes the table before it carries on executing, but it doesn't wait it just continues to execute the next else if leaving the displayed table in the background. Any ideas on how i could fix this problem? else if (printProcess.equalsIgnoreCase(StandardConstants.DO_WORKSHEET_CALCULATIONS)) { ...

18. Generic jtable    coderanch.com

Hello, I'm working on a maintenance screen that has a JTabbedPane that has about 15 tabs. Each tab has a jTable. Each of these jtables contains a simple ID (int), value(String) and a description(String).These values are used in drop down lists in the other parts of my application. So one has statues, address types, etc. As you can imagine there is ...

19. Pivot table in Swing    coderanch.com

20. Creating a table without jTable    coderanch.com

I have a programming project due soon, in which I must create trig tables. These tables are to be created using - separators for the rows, and the | for the columns. Each cell is to have a width of ten characters, and I am supposed to input a formatted trig value in each cell. The number of columns are taken ...

21. how can I create table in swing    coderanch.com

22. JTable Troubles.    coderanch.com

So, I'm essentially trying to setup my JTable to display only images. I tried searching around, found some examples, and followed to nearly verbatim. Problem is, I don't have any images displayed. This is what my table looks like: however, each image is simply a red square, so I should be seeing a sea of red, instead of the above. If ...

23. jcombo box and jtable    coderanch.com

24. jtable in swing    coderanch.com

25. how to create jtable with rowheader as well as with columnheader    coderanch.com

i want to create a table where i want to display header in front of each row as well as header above of all column...... i tried many example but i am not getting any code with both column header as well as row header...... some examples are having row header but not having column header.........some are having column header but ...

26. Swing JTable    coderanch.com

27. Refresing a JTable    coderanch.com

i am using beans technique so i have a method called displayCV60, which returns a JTable..the code is below: public JTable displayCV60() throws SQLException { connectAndCreateStatement(); final String []HEADING = {" CV Number","MAC Address","Terminal ID", "Truck Number","Type","Comments","Serial Number","Ticket Number"}; Vector heads; Vectorrow; Vector>rows; try { String select = "SELECT * FROM CV60s"; results = statement.executeQuery(select); heads = new Vector(); for(int ...

28. How to implement Sortcuts in JTable?    coderanch.com

29. different aligment in jtable    coderanch.com

30. Related to JTable    coderanch.com

31. Clone JTable    coderanch.com

public class Clone { public static Object clone(Object source) { Object newObject = new Object(); ObjectOutputStream ooStr = null; try { ByteArrayOutputStream baoStr = new ByteArrayOutputStream(); ooStr = new ObjectOutputStream(baoStr); ooStr.writeObject(source); ooStr.flush(); ObjectInputStream in=new ObjectInputStream(new ByteArrayInputStream(baoStr.toByteArray())); newObject=in.readObject(); } catch (ClassNotFoundException ex) { Logger.getLogger(Clone.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(Clone.class.getName()).log(Level.SEVERE, null, ex); } finally { try { ooStr.close(); } catch ...

32. calculate sum in jtable    coderanch.com

class StocIntrari extends JPanel { JTable t; int count = 0; Vector v; MyTableModel mtm; Object[][] obj; Object[] col; JScrollPane sp; final static int extraWindowWidth = 300; final static int extraWindowHeight = 100; public static final Object MyTableModel = null; public Dimension getPreferredSize() { Dimension size = super.getPreferredSize(); size.width += extraWindowWidth; size.height += extraWindowHeight; return size; } StocIntrari() { setLayout(new BorderLayout()); ...

33. Understanding JTable.addColumn()    coderanch.com

Hello folks, this is a hacky approach at understanding swing's JTable, based on Sun's Demo Application. After clicking into the table, a new column is added and displayed (my custom datamodel registers as listener to the columnAdded-Event). I'm expecting to have cell-value for this new column = "argh" but the value is the same as it is for the first column ...

35. Ordering jtable    coderanch.com

Hi all, I have a JTable with just one column. Every cell contains a picture thumbnail with a name and a timestamp below. The pictures themselves are represented by JPA Entities, which have tags associated to them (a comma separated String, which does not appear in the table). Now I want my user to be able to sort the table based ...

36. ui beginner feedback for JTable handling kindly wanted    coderanch.com

im somewhat of a beginner in java gui programming. i have a jtable component in which i have a model that represents the data of a customer update application. i have written a method for dynamic handling of the table columns that represents the id name, last name, email, address, country for each customer. It is here that i am a ...

37. Advanced understanding of JTables    coderanch.com

38. jTable problemmmm    coderanch.com

hello... i got a problem with my jtable... it doesn't display the column headings although it displays the table.... and why does it throw a cannotFindSymbolMethod setBackground....??? i think i imported the required packages and classes,.. i can't seem to see the real problem here.. anyway, please, can anyone help me??? thecode: import javax.swing.*; import javax.swing.JScrollPane.*; import javax.swing.event.*; import java.awt.*; import ...

39. Show Directories in JTable    coderanch.com

40. Jtable    coderanch.com

hi frnds.... I tried all possible things but its not working yet before loading the new model i am printing the number of rows in the old model and after loading also i am printing the count of rows in the new model . Unfortunately both are the same indicating that the new model in not loaded. And i am getting ...

41. Some demo with JTable with Form    coderanch.com

I am able to code all what I need. But I feel, that I dont't need to define every button's event etc... That I can save some time and work, that some basic behaviour can be generated automatically by few clicks in my development environment (JDeveloper). Some years ago we did something similar with Struts/ADF. The difference was, that web application ...

42. Freeze Pane in JTable    coderanch.com

Also you could customize your contentpane to add 2 Jtables, one with checkbox and 2nd Jtabel with rest of the columns, when you scroll your horizontal bar, capture the mouse click event and reset the coordinates for Jtable1 to be in a visiable area..... Sounds more complicated then previous post...but this also resolves your issue.

43. JTable refreshment -- or was that 7up?    coderanch.com

My goal is this: to have a single window that shows me information from an SQLite3 database for 1 month. Then to have the option with a click of a button to go forward in time, or backward in time, and show the new information. What I have: I have the code to get the correct information out of the database. ...

45. JTable Vertical Fill    coderanch.com

46. jtable    coderanch.com

Hi all, I have a table with 5 columns. I was required to validate column 3 and 5 for numeric input. I could validate numeric cell by cell. If I do that, I need to write the code for each cell. Please suggest how I can iterate the column 3 and 5 for the validation

47. Initializing JTable    coderanch.com

Statement p = con.createStatement(); ResultSet r = p.executeQuery("SELECT * FROM dummy"); ResultSetMetaData meta = r.getMetaData(); int colCount = meta.getColumnCount(); r.last(); int w = r.getRow(); r.beforeFirst(); Object []headers = new Object[colCount]; for (int h = 1; h <= colCount; h++) { headers[h - 1] = meta.getColumnName(h); } Object[][] record = new Object[w][] ; Object rows[]; int l=0; while (r.next()) { rows =new ...

48. jtable alert    coderanch.com

I need to popup an alert message for the user to key-in numeric values. This system is a questionnaire targeting for the public to give their feedback. So, it will be more informed if the system prompt an alert message (joptionpane) rather than the red line. ------------------------------------------------- import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; ...

49. Href in Jtable(or similar action)    coderanch.com

Hi I have a Jtable which shows a list of users I have a requirement where i need to be able to click on a username ,I need to capture the username clicked and then be able to edit the particular users my profile Can someone help me on how to do this something like adding a mouse listener on the ...

50. JTable    coderanch.com

Hello, I would like to ask about the best solution. I have two JTable, the first record of the arrival of my students (who lists me in what came to school), the second I have listed all the students who are in the class (the class teacher selects and lists him in the first table, and who when he came in ...

51. JTable pro    dbforums.com

52. JTable Association    dbforums.com

Hello, I have a program where the user clicks on the screen and the coordinate of that click is stored in an array. Where the user clicked a point is drawn. I want to display these values in a JTable. The only thing is it has to be associated, so changes can be made either way. So for example if I ...

54. Input....in JTable    java-forums.org

hi all I hav created one table in which 1st column is noneditable , 2nd column is editable with combo and third one is simple column with normal editable..... actually what i want to do is when my 2nd column gets focus it opens a small window or frame or dialog where it takes inputs from the user and multiply and ...

55. Java Swing JTable Simple Doubt    java-forums.org

Hello there, In the below code of a JTable Example I wanted to know how to print a cell value when you double click on a cell. I was wrong in my logic. Could someone help me with this. I tried using a Point Class. Java Code: import java.awt.Dimension; import java.awt.GridLayout; import java.awt.Point; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JFrame; import javax.swing.JPanel; ...

56. Regarding the JTable    java-forums.org

Hai All, I get the code to display the Icon on the Frame, but i want to display onto the Particular Row. For that I am sending the Path of the file and return the Icon to the case stmt where I can display the Icons, but it is Displaying the String of that Particular File of Sirectory. What is the ...

57. JTable doesnt show columun names!    java-forums.org

Hello. I'm trying to use JTable in my application and at the same time using tabbes to switch between my different JPanels. And within one of them panels i've got a JTable showing but it doesn't show the columun names of the cells! I'm really stuck in the mud :-(. This is my code: public class EditPanel extends MainPanel { //inherit ...

58. JTable    java-forums.org

First, JTable is really designed as one piece of a framework, not as a ready to use component. It has several classes that provide pieces of functionality, all of which have default implementations. But the design really is intended for the developer to build each of the component classes according to their needs. If you intend to do serious Swing development, ...

59. Flexible JTable?    java-forums.org

Hello, I am searching for a GUI component which works like the "table" in Microsofts Outlook. Under Calender you simple add/drag/drop appointments. Perhaps someone knows a commercial or non commercial framework which will help me. Further I am interested in the GUI-Component. I think that the component is not a JTable but something like a Grantt-Chart? For those who do not ...

60. active jtable    java-forums.org

61. redo and undo feature for jtable    java-forums.org

62. Working with Jtable    java-forums.org

I have made a connection to MS Access in java and can retrieve information.. I have 2 questions... How do I search for specific data in table and display in a jTable..for example if my database contained concert events how would I pick all events that are on a certain date and display them in a Jtable??

63. Jtable    java-forums.org

64. Java Tables    java-forums.org

:confused: I have searched a lot over jtable but didnt found any thing easy, please can you explain how can i make tables in java having column name defined and row have no data at all, and it has scroll when the size exceeds then given , also the row have no borders.

65. How to calculate total in table?    java-forums.org

JFrame frame = new JFrame("MoneyNest4You"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E); frame.setSize(1010, 300); JMenuBar menubar = new JMenuBar(); Object[][] data = { {"First Name", "Last Name", "Account Type", "Account Number", "Transaction Amount"}, {"","","","", f}};me.setJMenuBar(menubar); JMenu file = new JMenu("File"); menubar.add(file); JMenuItem exit = new JMenuItem("Exit"); file.add(exit); JMenu help = new JMenu("Help"); menubar.add(help); JMenuItem about = new JMenuItem("About"); help.add(about); JPanel leftpane = new JPanel(); JPanel ...

66. creating a Jtable using swing    java-forums.org

Hi , I'm connecting to db2 using a JDBC driver and then running the piece of code below : while (rs.next()) { String a1 = rs.getString(1); String a2 = rs.getString(2); String a3 = rs.getString(3); String a4 = rs.getString(4); String a5 = rs.getString(5); System.out.printf(" %s %s %s %s %s\n", a1, a2, a3, a4, a5); System.out.print(""); } Then I get the below output: ...

67. jtable    java-forums.org

he pals, can any one help me out with the this task?? i have to blink the specfic cell in jtable.. say the index of the cell is 2,2 i have tried the following code.. but it is not working while(true) { ((Component) tableclassobject.jTable1.getCellRenderer(row, col)).setBackground(Color.red); Thread.sleep(50); ((Component) tableclassobject.jTable1.getCellRenderer(row, col)).setBackground(Color.white); } insted of blink one cell its results in colouring the whole ...

68. JTable. make it read what's in the box    java-forums.org

Hi. I ran across an annoying problem I had before and still I can't figure it out... I am using a JTable, where the user writes stuff into. Then there is a button below it, he clicks and then the calculation happens. However, the last cell changed is not read correctly, first I have to switch the highlighted cell, only then ...

69. Table for component    java-forums.org

Does somebody know how make a class which can show component in table which can increase component in this table by horizontally and vertically? I try something but I have problem with set a size... this class is inside class Tabulka (Table) Java Code: private class ZmenaVelikostiHorizontalne { /** Prepka, whitch is before */ private final Prepazka PREDCHOZI_PREPAZKA; /** Prepka, whitch ...

70. jTable    java-forums.org

hi, in my program i click a row in a jtable (a) and i open a jDialog. in this jDialog i can select some rows from another jtable (b) and i want return these to jtable (a). my code returns only the first but if i scroll the table i see the other ones. thks

71. Jtable    java-forums.org

I created a Jtable in which the number of columns and rows change dynamically. Whenever there are less number of columns(or rows) , there is a large awkward gap between the last column (or last row ) and the scroll bar. i was trying to remove this gap from past few days....but i couldn't....please please help me with this....

72. JTable using swings    java-forums.org

Here bellow my code is working fine but JTable click on maximize button alternate colors of the rows was 'not alternate' and scrolling up and down was same probleam... Java Code: import java.awt.*; import javax.swing.*; import javax.swing.table.*; public class Testdemo extends JFrame { private JTabbedPane tabbedPane; private JPanel panel1; private JPanel panel2; private JPanel panel3; JTable mappingTable; JScrollPane pane; public Testdemo() ...

73. Jtables    java-forums.org

74. JTable    java-forums.org

75. Find and Replace in JTable    java-forums.org

Find and Replace in JTable Hello... i'm new in this forum.. i need some help on how to to write the java code for find and replace the text in the jtable. that is the find and replace dialog that i used: import javax.swing.*; import javax.swing.JComponent; import javax.swing.JButton; import javax.swing.JTabbedPane; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.text.*; import javax.swing.JPanel; import ...

76. JTable with Font    java-forums.org

77. JTable    java-forums.org

Reading it at the moment, I was using absolute layout from the UI as I felt the layout provided was kinda troublesome to use and with absolute layout I can just place boxes n labels everywhere. Earlier on, I had some problem designing the UI view as to when I arrange or resize a textfield or else, sometime the other components ...

78. jtable    java-forums.org

79. [SOLVED] JTable DataModel - how to get    java-forums.org

Hi y'all; I am creating a project where I use a JTable that i create by specifying rows and columns for example: JTable jt = new JTable(10,30); So, how can I access (and manipulate) the underlying array if I have not used an array to create the table. That is, how can I get to jt DataModel DataVector elementData Thanks for ...

80. Swing Tables - urgent    java-forums.org

81. Regarding JTable    java-forums.org

Hi, i am not getting the column names at top of the table. Heres the code, i really dont understand the problem. So please help. And also please tell me how to refresh it when i am trying to do the old values are not erased from the table. The new values are added below it. try { conn = DriverManager.getConnection("jdbc:odbc:addissue", ...

82. Netbeans Jtable    java-forums.org

I still get an error."Illigal start of expression".In my code i want when i click the button,to get the values in the table and do some calculations on it.Can you figure out why the error msg is showing.Here is my code /*public Object GetData(JTable xenon, int row_index, int col_index){ return xenon.getModel().getValueAt(row_index, col_index); } */

83. Netbeans JTable    java-forums.org

Of course it works and people have done it lots of times. You generally have two similar options. The first is to read the Netbeans tutorials on how to bind a JTable to a database table. The second option is to read how to use TableModels and populate their values with data returned from a nice DAO layer that you would ...

84. JTable    java-forums.org

85. jtable    java-forums.org

86. Regarding jTable in Netbeans(FORMS).    java-forums.org

So I'm doing a school project and it requires for a jTable to be filled according to previous results (therefore not hard-coded). I have tried search the WEB but I can't find anything :S The table is jTable (drag and drop). Basically I need to extract results from previous methods and store them in the tables. I know how to fill ...

87. How to clone a JTable?    java-forums.org

Hi, I would like to create a ByVal copy of a JTable, however, the TableModel is not being cloned; I mean the clone and the original Table do have the same model and changing one changes the other too. Do I need to extend the DefaultTableModel and make it implement the CloneAble Interface as well? (And thus every object a JTable ...

88. Code Customiser on Swing Table    java-forums.org

Hi :), How may I use the code customiser (in netbeans) to alter a table such that it has comboboxes or a little button with "..." next to the text (like the property sheet used by netbeans)? There seems to be a lack of tutorials on this one the net. Thank you. Q

89. From txt to JTable.    java-forums.org

90. JTable    java-forums.org

Hi, I have a JTable called 'table'. The table has four columns and some rows. The columns are "firstName", "lastName","address"," married". firstName, lastName and address are textFields, married is a checkBox. I have inserted some data into the table. Now, when i click into a particular row of the table, i want the firstName, lastName, address and married to show their ...

91. JTable Calculation libraries    java-forums.org

So when you say "spreadsheet" above in the OP, you meant you were having to write the spreadsheet code, and you weren't simply exporting the data as a spreadsheet...because that was far from clear from that post. So, at the moment, you want to make your own cut down version of Excel? Or is it simpler than that?

92. Jtable getcolumnvalue    java-forums.org

93. JTable is there, but not showing    java-forums.org

94. feeding map into jtable    java-forums.org

95. JTable    java-forums.org

96. JAVA JTable rebind    java-forums.org

Good morning all, I'm fairly new to java so please have patience. I have a java application that takes values from JTextFields and inserts them into a mySQL database. The below code is from my add button which adds a record to the database and then reloads the DefaultTableModel. If anybody could point me in the right direction of how to ...

97. Using Jtable    java-forums.org

98. jTable    java-forums.org

99. JTable entry modification    java-forums.org

Hi, I have a Jtable and some values in it. and I displayed it. Once after displaying this Jtable, I have a Jcombobox below this Jtable and If I select this combobox to a different value, I should be able to display some other values from a string array on the same Jtable. Is it possible to do this without creating ...

100. Marker over XY graph and JTable    jfree.org

I have a project that contains multiple forms of data that I want to be connected and scrollable. I currently have a JFreeChart for the XY graph and the strings in JTable, but am open to any suggestions. The data would be two strings of characters, a string of numbers that is the position of the character string, and XY chart/graph ...