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Member Avatar for LianaN

Hi! I'm trying to improve a code shown below. My idea is to add multiple images to JPanel. It sounds like an easy task, but all my attempts failed so far. I tried to create [ICODE]Image image2 = getToolkit().getImage(Drag1.class.getResource("cross_cursor.gif"));[/ICODE] and then [ICODE]bi2 = new BufferedImage(image2.getWidth(this), image2.getHeight(this)...);[/ICODE]. But I can see …

Member Avatar for ivy.inc.Hugh
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Hi! I'd like to check if a string contains spaces: [CODE]System.out.println(text2.getText().matches("\\s+"));[/CODE] This code returns 'false' for both "My string" and "MyString". But I need 'true' for "MySpace". How could I do this? Thanks!

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Hi! I'm trying to create a method for simultaneous dragging a group of JLabel components. First, I select the components to be dragged ([ICODE]getSelectedStatus() -> true[/ICODE]), and then I want to be able to drag the selected components. I have a working method for a single JLabel component, but there …

Member Avatar for anami
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Hi! I'm a newbie in JSP and, therefore, my question could be totally incorrect. Sorry for this. So, I've developed a Java SWING application that is actually the image processing tool. Is it possible to update this software to a web-application? For example, could I place Java classes in WEB-INF/classes/, …

Member Avatar for pushkar honey
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Member Avatar for LianaN

Hi! Please, tell me how to make the JDialog close button working in a proper way. Now it does not work. [ICODE]System.out.println(value);[/ICODE] produces 0. But if I write [ICODE]if (value == 0)[/ICODE], then nothing happens. Any ideas? Thanks! [CODE] public static void about() { final JOptionPane optionPane = new JOptionPane( …

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! I would like to read XML file from my SWING application, however [ICODE]list.size()[/ICODE] returns 0. Why does it happen? Thanks! [CODE] private void open() { SAXBuilder builder = new SAXBuilder(); File xmlFile = new File(openedFileName()); try{ Document document = (Document) builder.build(xmlFile); Element rootNode = document.getRootElement(); List list = rootNode.getChildren("Panel"); …

Member Avatar for LianaN
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Hi! I would like to select images by using a rectangular area. All images that are inside this area, must be selected. I want this area to appear while mouse clicking and dragging. So, the size of a rectangular area should change dynamically according to a position of the mouse …

Member Avatar for LianaN
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Hi! I need my own file extension for SWING desktop application (image processing tool). In fact, I want a user to be able to save locations of JLabel components on a screen. Please, give me a hint on how to implement this task. Thanks!

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! I'm trying to create borders around JLabel components. However, the line [ICODE]c[i].setBorder(border)[/ICODE] cannot be compiled. Please, help me to improve this code. Thanks! [CODE] public void mouseReleased(MouseEvent e) { if (Menu.getgroup()) { Component[] c = getComponents(); Border border = LineBorder.createGrayLineBorder(); for(int i = 0; i < c.length; i++) { …

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! I would like to create a button for deleting all JLabel components on JDesktopPane. My code is shown below. The error message is shown below the code. For instance, let's say there are 3 JLabel components (the 4th is not JLabel). In this case, only 2 of 3 JLabel …

Member Avatar for LianaN
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125
Member Avatar for LianaN

Hi! I would like to make transparent my two JScrollPane components. Could please someone explain me why the code [ICODE] scrollPane1.setOpaque(false); scrollPane2.setOpaque(false); imagePanel.setOpaque(false); beads.setOpaque(false);[/ICODE] does not work? Thanks! [CODE] public SelectablePanel() { beads = new BeadsCollection(NR_OF_BEADS); imagePanel = new ImageSelectionPanel(0, NR_OF_BEADS_SIZE); p = new Point(); JInternalFrame jif = new JInternalFrame("Title", …

Member Avatar for LianaN
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273
Member Avatar for LianaN

Hi! Could someone please give me any idea on how to add a background image to JInternalFrame without subclassing. Below I provide a code snippet, but the line [ICODE]jif.setBackgroundImage(backImage);[/ICODE] is incorrect. Please, help me to fix this error. But I don't want to create a subclass, e.g. MyJInternalFrame. Thanks! [CODE] …

Member Avatar for LianaN
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833
Member Avatar for LianaN

Hi! I am working on scaling the image that is placed in JLabel. The scaling method itself works more or less fine, however a black border appears around the image after scaling. I tried to make the transparent/white JLabel background, but my attempts failed. Please explain me how could I …

Member Avatar for LianaN
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437
Member Avatar for LianaN

Hi! I'm trying to zoom in/out ImageIcon in JLabel. The problem is that after 2-3 zooming actions, the image quality becomes horrible. How could I solve this problem? Thanks! [CODE] private void doZoom(int scaleFactor) { Component[] c = SelectablePanel.getMainPanel().getComponents(); for(int i = 0; i < c.length; i++) { if(c[i] instanceof …

Member Avatar for LianaN
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183
Member Avatar for LianaN

Hi! How could I change custom cursor size? I was playing with Point(a,b), however the cursor is always 32x32 and it looks horribly. Below you can see my code snippet. Thanks! [CODE] Toolkit toolkit = Toolkit.getDefaultToolkit(); Image imageCrossCursor = toolkit.getImage(BeadToolbarColor.class.getResource("/icons/cross_cursor.png")); cross_cursor = toolkit.createCustomCursor(imageCrossCursor, new Point(0,0), "Cross cursor"); panel.setCursor(cross_cursor); [/CODE]

Member Avatar for LianaN
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1K
Member Avatar for LianaN

Hi! I created JToolBar, but it is always attached to JPanel. If I run my api, then I can drag and drop JToolBar in order to separate it from JPanel. I want to programmatically make JToolBar to look as a separate window (e.g. as a toolbar in Photoshop). Does anybody …

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! There is JPanel with multiple JLabel components. I would like to change the border color of JLabel component that is clicked on. I tried [ICODE]this.getComponentAt(e.getX(), e.getY()).setBorder(solidBorder)[/ICODE], but it did not work... How could I solve this task?

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! I'm trying to add dragging and dropping behaviour to JLabel. It works only when I press the mouse for the first time. If I continue pressing the mouse, the error message shown below is generated. Please, help me to find an error. [CODE] JLabel bkg = new JLabel(icon); jLayeredPane.add(bkg, …

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! I would like to zoom in & zoom out an image in JLayeredPane. Now I have a snippet for loading a background image into JLayeredPane. How could I now access ALL content images of JLayeredPane (it could contain multiple images) and zoom them in/out? Perhaps, somebody could send me …

Member Avatar for LianaN
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Hi! I would like to make a JFrame that will play a role of a toolbar. It can be dragged and dropped within a specified area. So, I don't know how to specify the area for dragging and dropping. Could anybody help me? Thanks!

Member Avatar for LianaN
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Hi! I'm new to Android OS and all this stuff. So, I tried to develop a HelloAndroid api as it is described [URL="http://developer.android.com/resources/tutorials/hello-world.html"]here[/URL]. However, when I try to Run the HelloAndroid, the error message occurs. It is also strange that by selecting Run->Run, the "Android Application" option does not appear …

Member Avatar for MarkitoMagic
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Hi! My JAVA+MySQL api worked fine yesterday, but today (when I try to connect to MySQL DB from remote machine) the fllowing erro is produced: [ICODE]Java Result: -805306369[/ICODE]. Although there is e.prinstachtrace() in my code, I received only this message. It happens here: [CODE] db = (Connection) DriverManager.getConnection("jdbc:mysql://" + url …

Member Avatar for LianaN
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Hi! My JTable is populated from remote DB. I would like to set column names from the DB table column "of_shortTitle". However, if I run query "select * from OrgFolders" then column names are taken from "of_title" by default. The table model is given below. How could I set column …

Member Avatar for quuba
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Hi! I would like to change the string: [ICODE]"reg_num, reg_date, attached_file, Description"[/ICODE] to the new string: [ICODE]"reg_num, reg_date, Description, attached_file"[/ICODE]. So, what I need is to search the substring "attached_file" and put in at the end of the main string. How could I do that? Thanks!

Member Avatar for LianaN
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Member Avatar for LianaN

Hi! Could someone tell me please how to configure MySQL DB for storing both latin and cyrillic data sets in the same table? Thanks!

Member Avatar for smantscheff
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Hi! I have a Java application that works with MySQL DB. Until today I used latin alphabet, but now I would like to extend my application to working with cyrillic alphabet. As far as I know, it is possible to use UTF-8. But I don't know the way, in which …

Member Avatar for LianaN
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Hi! I would like to create textfields that will serve for sorting data in JTable, and the width of these textfields will correspond to a column width. So, below you may see the code that worked until I did not use an array of textfields. Now, the size of [ICODE]txtRegNum[/ICODE] …

Member Avatar for quuba
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Member Avatar for LianaN

Hi! When I try to run the code [ICODE]tableModel.setQuery("select l_code, l_title, l_description from Lists");[/ICODE], then I receive the following error: [CODE] java.lang.ArrayIndexOutOfBoundsException: 0 >= 0 at java.util.Vector.elementAt(Vector.java:427) at SystClasses.QueryTableModel.getValueAt(QueryTableModel.java:72) at SystClasses.QueryTableModel.getColumnClass(QueryTableModel.java:53) at javax.swing.table.TableRowSorter.useToString(TableRowSorter.java:224) at javax.swing.DefaultRowSorter.updateUseToString(DefaultRowSorter.java:607) at javax.swing.DefaultRowSorter.sort(DefaultRowSorter.java:556) at javax.swing.DefaultRowSorter.allChanged(DefaultRowSorter.java:816) at javax.swing.DefaultRowSorter.modelStructureChanged(DefaultRowSorter.java:826) at javax.swing.JTable.tableChanged(JTable.java:4364) at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:280) at SystClasses.QueryTableModel.setQuery(QueryTableModel.java:110) at SystClasses.Form.createAdminTable(Form.java:747) at …

Member Avatar for LianaN
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Member Avatar for LianaN

Hello! My JTree is filled from DB. If I add a new node, and then try to delete it, then the code shown below provides an error. As I see, selectedFolder is sometimes null. Why does it happen? Why [ICODE]getLastSelectedPathComponent()[/ICODE] doesn't return a node selected, but returns null in some …

Member Avatar for quuba
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Member Avatar for LianaN

Hi! I want to delete an empty directory from FTP Server, however my code works only for files. Let's say the root directory in my FTP Server is called as [ICODE]Documents[/ICODE]. I want to delete a directory [ICODE]Director[/ICODE]. Then I execute [ICODE]client.deleteFile("\\" + selectedPath);[/ICODE], where [ICODE]selectedPath[/ICODE] is equal to [ICODE]Documents\Correspondence\Finance\Director[/ICODE]. …

Member Avatar for LianaN
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