Has anyone ever seen an exception like this (with version 1.6.0_11 of the JVM)?: ERROR: java.lang.NullPointerException: null at java.util.Hashtable.put(null:-1) at javax.swing.text.SimpleAttributeSet.addAttribute(null:-1) at javax.swing.text.SimpleAttributeSet.addAttributes(null:-1) at javax.swing.text.StyledEditorKit.cr...
Hi, In my JTable, I have two editable numeric columns. The editor for both columns extends AbstractCellEditor and uses a JFormattedTextField as an the editing component. The problem is that the format for input depends on the value of another column in the row. If condition X is met, the number of fraction digits should be Y, otherw...
Hi: Now I have to handle some xml in my java swing application. I have to build a swing ui according to the special schema ,then user can fill some values.After user completed,I will collect the information,validate the value and then build a xml file. For building xml file I can use the xmlbeans,however how to parse the schema and buil...
I'm learning Jython. I developed a simple Swing Application with Jython and it's ok. Now I would to use the Swing Application Framework (JSR 296). I did not find any example in Internet. ...
sir, l want to display resultset in jframe.i get output last record in the database displayed. Lam intrested to place next button,back button in the frame.when i was click in the back button previosly viewed record is displayed and vice-versa.i don't know it will be possible.plz help me ...
is there a tool to generate a Swing form from xml code? ...
I'm working on a MigLayout form with 3 columns and 4 rows, like this: "wrap 3", "[15%] 15px [45%] 15px [40%]", "20 [] 15 [] 15 [grow,fill] 15 []" Now my goal is to have it look like this: .------------------------------------. | 15% | 45% | 40% | |------------------------------------| | | | ...
Hello, I have a JTable whose associated TableModel could be initially empty. Therefore, it currently shows a JTable with its columns and no rows. In order to fill this JTable, I want the user to drag and drop elements from another component. The problem is that I would like to hint the user that he/she should drag elements to this tabl...
I have a component inside a JInternalFrame which needs to perform actions when keys are pressed within the JInternalFrame's parenting window. Using InputMap/ActionMap would be ideal, but the getInputMap(WHEN_IN_FOCUSED_WINDOW) of the component returns an InputMap that treats the JInternalFrame as the "focused window", rather than its par...
i have implemented keylistener interface and implemented all the needed methods but when i press the key nothing happens here, why? package swing; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.Point; import j...
I am supposed edit some code for an assignment, and he gave us the framework and wants us to implement code for it. I load the project into netbeans and can't figure out how I'm supposed to edit the swing components. I don't see how to edit source vs. design. import javax.swing.*; import java.util.*; import java.io.*; public class Cu...
I'm trying to use an empty column as a divider between pairs of columns in a JTable. Here's a picture and code for what I have so far. I know I can change the look using a custom TableCellRenderer. Before I go down that road, is there a better way to do this? Any ideas appreciated. import javax.swing.*; import javax.swing.table.*; pu...
i want to make a jPanel ( vehicleListPanel) with two column like this NAME | button name | button ... left column show vehicle name , and right to show an icon proper with vehicle status (red, green icon) ... i try to make it, but there is problems with button size, i can't set it how i want, plz help me with example thanks ...
I am creating desktop application using the JDesktopPnae.I complete almost.But when i press ctrl-Alt-Del key it comes out of my application. how can i prevent that action Thanks ...
I don't like this ugly FileChooser layout in Linux. This layout is used by any other program and is MUCH more beautiful. Is this layout available in Java? If so, how? ...
Hey guys I have a little issue here. I have a panel where I am drawing a string. This is a game so I keep redrawing the score in order to update it. However when I draw it again it is drawn on top of the previous score so it looked all garbled up. Any ideas how to fix this? comp2d.drawString(GetScore(Score),ScoreX,ScoreY); ...
Hi I have created sample progeam which will give same look and feel of a confirm dialog and set the background colour as red. But I donot know what is the problem that my background colour of option is displayed as the default colour but not red. also i need same look and feel of confirm dialog across all platforms. Here is the code tha...
I am using the below code to set a custom cursor for JPanel, but when i run the code its enlarging the image which i set for cursor. Is there a way to set a userdefined cursor size ? Toolkit toolkit = Toolkit.getDefaultToolkit(); BufferedImage erasor=new BufferedImage(10,10, BufferedImage.TYPE_INT_RGB); Graphics2D g2d=(Graphics2D) eraso...
Hello Guys, I am having some problems concerning starting javax.swing.Timer after a mouse click. I want to start the timer to perform some animation after the user clicks on a button but it is not working. Here are the code snippets: public class ShowMe extends JPanel{ private javax.swing.Timer timer; public ShowMe(){ timer =...
I am working on customizing a closed source client application. It has a tree in the UI and exposed only a method to get the selected node. It returns a subclass of TreeNode. And there is no way to get a reference to the parent tree. Now i want to expand the selected node upto its leaves. Is there any way to get a reference to the JTree...