JList 1 « JList « Java Swing Q&A





1. Sectioned List in Java/Swing?    stackoverflow.com

I have a list of items in a JList for the user to select. Since it's a lot of items (say, cities in states), I want to divide the list into ...

2. importing Source code into Jlist    stackoverflow.com

Is it possible to importing a java source code into Jlst? Please tell me how, and ll appreciate an example if possible. Thanks

3. Java Swing JList    stackoverflow.com

I'm trying to make a JList to display the contents of an array. The array itself is not an array of strings, however, but an array of Objects. Is it possible then, ...

4. Java Swing JList    stackoverflow.com

I am using a JList in Java Swing, but when my Dialog opens, the List isn't shown.

private JList getJList() {
  if (mylist == null) {
   mylist = new ...

5. Did Hans Muller ever publish "Mastering JList Programming" as promised?    stackoverflow.com

This article was Part 1 of a two part article. I cannot find Part 2, "Mastering JList Programming".
Google cannot find it. Did it get lost in the Oracle-Sun move, ...

6. Java Positioning a list on a GUI    stackoverflow.com

I'm trying to add a JList to a GUI, but am wondering how to position it? I want it to appear on the right hand side of the TextArea for data ...

7. Using JLists and ListModels    stackoverflow.com

I have defined a DirectoryListModel class that extends the AbstractListModel class from the Java Api. Internally, I have a list of File objects. I have defined the getElementAt(int index) method as:

@Override
public Object ...

8. Writing something in JList    stackoverflow.com

hey i have another problem. I created JList in my main window and now i want to add something to it. I do it this way...

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) 

{  ...

9. JList clearSelection() issue    stackoverflow.com

I have a problem with my two JList components. I created and placed on JFrame two JList components. I added listSelectionListeners to both of them that should unselect a selection of ...





10. JList Help Please    stackoverflow.com

I have a list of data in a JList component in my GUI. I would like to know if there is a method that i can call on the list element(s) to ...

11. JList throws ArrayIndexOutOfBoundsExceptions randomly    stackoverflow.com

I'm trying to add items to a JList asynchronously but I am regularly getting exceptions from another thread, such as:

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 8
Does anyone know how to fix this? (EDIT: ...

12. Java: Jswing: Jlist    stackoverflow.com

When i input a name to the Jlist, the name gets outputted to the lower section of the list, how do i make it to where the name is set to ...

13. Super simple java swing jlist question that I just can't figure out!    stackoverflow.com

Ok, so I am working on a homework assignment, and I am using SWING to make a GUI for a Java project, and I am running into troubles with JList. I have ...

14. Using the JList .setModel() method with a class as an argument    stackoverflow.com

My ultimate goal is to have a JList which refreshes its content at runtime, and I have found a solution that works from this post here on SO, however I ...

15. How does JList repaint?    stackoverflow.com

Please try to run the following example and explain to me why repaint fails to work from time to time especially if you click on a row. It looks like JList ...

16. JList odd listing    stackoverflow.com

I have a JList that gets filled up with values with a DefaultListModel. By entering a name and pressing on a button it gets listed in the JLlist (vertical wrap). But the odd ...





17. Is there something wrong with Swing's MVC implementation for JList?    stackoverflow.com

Some time ago I asked this question. All solutions are workarounds. Now this can't be. I feel that something is wrong here, but I can't tell if it is Swing's MVC ...

18. What is this component name    stackoverflow.com

What is the name of the component in java Swing shown in the following link http://www.scriptocean.com/template3.html It is known as extended ListView in Android. But I want to know ...

19. Java - GetSelectedIndexes problem    stackoverflow.com

My problem is my compiler isnt recognising getSelectedIndexes. I've got all the awt and swing libraries imported and PartyList is a Jlist thats been set up and works, can anyone give ...

20. JList alphabetical ordering    stackoverflow.com

I have the following demo app which displays a list of values, but i need to be able to control the ordering of the elements in the list. Whats the easiest way ...

21. JList - design question regarding the toString() presentation    stackoverflow.com

I am working with JList and I have encountered a few design problems. what I want is a gui componenet that presents a list and lets the user add or remove ...

22. Optimal way to get a JList selectedvalue from another class    stackoverflow.com

I am making a database manager which shows you a JTable with all the table data. The ideas is to have in the left side a JList with the table names ...

23. Odd HashMap Counter Behavior    stackoverflow.com

I have this code which applies a counter to each item on the list. When the item reaches a certain number it is moved from jList3 to jList 1.

public Map<Object, Integer> ...

24. How should I manage multithreaded concurrent access to an ArrayDeque?    stackoverflow.com

My Swing GUI displays a JList of items that are being sequentially removed by a background thread. Behind the JList is an ArrayDeque<Card>, myHopper, implementing myHopper.getSize() and myHopper.getElementAt(), as per ...

25. Managing the function main    stackoverflow.com

I created a class A that reads a text file and alters some lines within the text, and the code is written in main() of this class. I also created another ...

26. Java - Deprecated method, need help?    stackoverflow.com

I am following a series of Java tutorials in an attempt to learn it. I have a question about tutorial 72. Link: http://www.youtube.com/watch?v=9z_8yEv7nIc&feature=relmfu At 7:02 of the video, this statement is ...

27. Make a JList expand to fill control?    stackoverflow.com

Is there anyway a JLIst can be set to expand to fit the size of the container/panel. Even if it adds empty white space its better than having odd sizes every ...

28. Making a JList in netbeans Frame    stackoverflow.com

i'm making an Jlist in Netbeans and i have written a code but the code dissapears not in my Jlist

/** Creates new form Toetsenbordd */
    public Toetsenbordd() {
 ...

29. Swing Jlist LayoutOrientation Problem    bytes.com

It might be useful to read the section in Sun's Tutorial on Sizing a Scroll Pane. It describes the general mechanism for "scrolling savvy" clients like JList where size is determined ...

31. Jlist in the Netbeans gui creator    forums.netbeans.org

32. Jlist Code properties pre-Custom Post Code Creation    forums.netbeans.org

Dear sir/Madam please Provide mee the help and details and Code sample on the following JList Code properties. Pre-Creation Coe Post-Creation Code Custom-Creation Code [url=http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?][/url]

33. jList HELP!!!    forums.netbeans.org

Need help for jList. How can I view files in a jList? I want to see files in a jList like in a FileListBox (ListBox) from Visual Basic. Thank you!

34. JList in a JScroll in a resizeable dialog problem    forums.netbeans.org

I have a JList box (in a JScrollPane) in a JDialog Form. When I preview the Dialog, it all looks nice, as I resize the dialog, the list nicely resizes itself ...

35. Reposition knob of jList at the top    forums.netbeans.org

I am stuck up with a small problem. I've got a jList having a large number of entries (1-20000).After a number has been chosen and calculations performed, I want to reset ...

36. Jlist help plz    forums.netbeans.org

>>>>>SOLVED<<<<< hey everyone trying to teach my self java and have a little problem with listview or jlist as it is also know. so what i am trying to do is pull some info from a database and load it in to a jlist to be viewed. example of what i have tried function listViewItemsAtviewAll(): Object[] { var con = DriverManager.getConnection(dbUrl, ...

37. Please help regarding JList Netbeans6.9 IDE    forums.netbeans.org

Search: NetBeans Forums FAQ Search Memberlist Register Profile Log in to check your private messages Log in Please help regarding JList Netbeans6.9 IDE NetBeans Forums -> NetBeans Users View ...

38. Help With This Exercise JList    forums.netbeans.org

39. JList    coderanch.com

40. JList    coderanch.com

41. Jlist on Popupmenu    coderanch.com

I need to Create a Combobox Lookalike. whic POPs Up aList with two Columns Time & Count. whenever we push button then we popup the list when we select a row from list then that time should be displayed on the textfield. This Combobox consists of Textfield, POPUPmenu, then button & alist on that popup. Kindly let me know how to ...

42. JList & Observer    coderanch.com

43. JList - Where was I?    coderanch.com

I have a JList that shows tables names from my database. Also on the screen are some check boxes that will be used to grant permissions for the tables - select, update etc. When the user selects an item in the list, the check boxes are refreshed to show current status. What I want to do is save new values of ...

44. JList.... Manipulation!!!    coderanch.com

Hi! All, Well I was wondering if the JList in swing allows programmers to change the color of the the items selected individually.. i.e. I am working on a Chat GUI where in I need to differentiate between ignored users and the ones that are not. I thought displaying the ignored users in one color and the rest in another color ...

45. JLIST HELP!!!!!    coderanch.com

Hi! All, Well I was wondering if the JList in swing allows programmers to change the color of the the items selected individually.. i.e. I am working on a Chat GUI where in I need to differentiate between ignored users and the ones that are not. I thought displaying the ignored users in one color and the rest in another color ...

46. JList    coderanch.com

47. JList    coderanch.com

The 2 callbacks are the result of the mouse interaction. 1 callback for mouse down 1 callback for mouse up If you are only interested in the mouse up callback then your handler can just check the event flag isAdjusting: true for mouse down, false for mouse up public void valueChanged(ListSelectionEvent evt) { if( !ev.isAdjusting() ) { // perform some work ...

48. JList maximum capacity???    coderanch.com

Thank you for trying to help, but I did that from the start. When I make the window so that it doesn't show twenty items, it uses scrollbars to show the remaining twenty. Even if there is less than twenty items, it still makes the scroll bars so that they can fit twenty items. The first time the JList is display ...

49. JList    coderanch.com

50. JList    coderanch.com

51. JList    coderanch.com

Well, at this moment I am not working with the same machine where is that program runs. But so far I remember it was kinda: String[] values = (String[])list.getSelectedValues(); Then print the values in a textarea. Another one I tried: Object[] selected = list.getSelectedValues(); String[] values = new String[selected.length]; for (int i = 0; i < selected.length; i++) values[i] = selected[i].toString(); ...

52. How to listen multiple JList?    coderanch.com

53. JList    coderanch.com

54. Question about JList    coderanch.com

Hi I have a few question about Jlist: I use Jlist to serve a chat program. People usually talks a lot J ,therefore I wonder if the Jlist is the correct component to use(rather then JtextComponents) or in other words does the Vector or The ListModel that I use places limits on how many elements I can add to it? and ...

55. JList    coderanch.com

56. Determine JLists    coderanch.com

57. JList    coderanch.com

public class MohitListCellRenderer extends DefaultListCellRenderer { public Component getListCellRendererComponent( JList list, Object value, int index, boolean isSelected, boolean cellHasFocus ) { this = super.getListCellRendererComponent( list, value, index, isSelected, cellHasFocus ); Structure s = ( Structure )value; if( s.isBold ) { Font f = getFont(); f = f.deriveFont( Font.BOLD ); setFont( f ); } if( s.isBlue ) { setForeground( Color.blue ); } ...

58. JList and DnD    coderanch.com

59. Have a common JScrollBar for more than one JList [urgent]    coderanch.com

Here is a piece of code I put together awhile ago that kept 2 scrollpanes in synch. import javax.swing.*; import java.awt.event.*; /** * ScrollBarListener - This class listens to scrollbar changes and keeps * 2 scroll bars in sync. One is the master and the other * the slave. Its scrollbar is not enabled and it scrolls * based on the ...

60. JList help needed    coderanch.com

I have an application that read from a data base and displays the results in a JList. The read works fine, my problem occurs when I try to delete an item from the list and the database. I have tried to approach this in 2 way, both give different exceptions, the first approach was to first delete the record from the ...

61. Need Your Help----JList    coderanch.com

62. Automatic Selectio for JList    coderanch.com

63. JList    coderanch.com

64. about JList    coderanch.com

"mozumder" - Welcome to the JavaRanch! Please adjust your displayed name to meet the JavaRanch Naming Policy. You can change it here. Here's a short example to illustrate the question: import javax.swing.DefaultListModel; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JScrollPane; import javax.swing.JSplitPane; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; public class TwoLists extends JFrame { private JList listOne; private JList listTwo; public TwoLists() { super( "A ...

65. JList    coderanch.com

The answer to your question lies in the difference between primitives and objects and the fact that Java is strongly typed. JList.getSelectedValue() returns an Object. The question is what happens if there is no selected value? In this case the developer has two options, throw an exception or return a value to represent no object being selected. Throwing an exception is ...

66. JList    coderanch.com

public Component getListCellRendererComponent( JList list, Object value, int index, boolean isSelected, boolean cellHasFocus ) { Component default = super.getListCellRendererComponent( list, value, index, isSelected, cellHasFocus ); if ( default instanceof JLabel ) { JLabel label = (JLabel)default; // based off of 'value' parameter decide what icon to use. Icon icon = //..... label.setIcon( icon ); } return default; }

67. set background of JList    coderanch.com

public class myCellRenderer extends JLabel implements ListCellRenderer { myCellRenderer() { this.setOpaque(true); } public Component getListCellRendererComponent( JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) { if (((Vector)listReturn[1]).get(index).toString().compareTo("Closed") == 0) { this.setForeground(Color.black); this.setBackground(Color.white); } if (((Vector)listReturn[1]).get(index).toString().compareTo("Unaccepted") == 0) { this.setForeground(Color.red); this.setBackground(Color.white); } if (((Vector)listReturn[1]).get(index).toString().compareTo("Accepted") == 0) { this.setForeground(Color.blue); this.setBackground(Color.white); } this.setText(((Vector)listReturn[0]).get(index).toString()); return this; } }

68. JList resizes    coderanch.com

69. JList class    coderanch.com

private Object[] getAllStudents(Student[] students) { Object[] output = new Object[50]; Student s = null; // Add parts for(int i = 1; i < Student.getStudentCount(); i++) { s = students[i]; try { String temp = s.getID() + " " + s.getFName() + " " + s.getLName() + " " + s.getSSN(); //System.out.println(temp); output[i] = temp; } catch(NullPointerException ex) { output[i] = "--Student ...

70. Basic Question For JList    coderanch.com

71. hi c this swing Jlist field problem    coderanch.com

72. JSplitPanes with JLists    coderanch.com

73. JList issue    coderanch.com

74. how to highlight impt date in JList..?    coderanch.com

Here's a working example. You should port some of this into your current application to suit your needs. package com.gthought.swing; import javax.swing.*; import java.awt.*; public class ListTest extends JFrame { public ListTest() { super("List Test"); this.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE ); ListRenderer rend = new ListRenderer(); DefaultListModel listData = new DefaultListModel(); listData.addElement( "Gregg" ); listData.addElement( "Freya" ); JList list = new JList(listData); list.setCellRenderer(rend); JScrollPane ...

75. JList and closing frames    coderanch.com

hi everyone, got a coupla questions, if you can answer them I was just wondering if there is an option, when using a JList, to make the listbox a little bit wider, so that the items in the listbox can have a little bit of "breathing space". At the moment, all I seem to be able to get to work, is ...

76. Autoscroll JList    coderanch.com

Hi, I have a JList that I use to display the output of an external process. The list should always scroll to to the last item. Since Swing has problems with threads I use a swing timer to be in the AWT event queue and move to the last line. This seem to work until the process has a lot of ...

77. JList    coderanch.com

import java.awt.*; import javax.swing.*; public class ListScrolling { JScrollPane jScrollAvlMaterial; JList listAvlMat; public ListScrolling() { jScrollAvlMaterial = getJScrollAvlMaterial(); JPanel panel = new JPanel(); panel.add(jScrollAvlMaterial); JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().add(panel); f.setSize(400,400); f.setLocation(200,200); f.setVisible(true); } //coded below for JScrollPane private javax.swing.JScrollPane getJScrollAvlMaterial() { if(jScrollAvlMaterial == null) { jScrollAvlMaterial = new javax.swing.JScrollPane(); jScrollAvlMaterial.setViewportView(getListAvlMat()); Dimension d = jScrollAvlMaterial.getPreferredSize(); d.width = 120; jScrollAvlMaterial.setPreferredSize(d); // ...

78. JList question?    coderanch.com

I had some similar problems using Strings in JLists, so I wrote a class that only uses Strings with JLists that extends JList: import java.util.ArrayList; import javax.swing.JList; import javax.swing.DefaultListModel; import javax.swing.ListModel; /** * * @author matthew.taylor */ class StringJList extends JList { public StringJList() { super(); } public StringJList(String[] strArray) { super(strArray); } public void setModel(String[] strArray) { DefaultListModel model = ...

79. import an access table into a JList    coderanch.com

80. JList Problem    coderanch.com

81. Set up Jlist    coderanch.com

Hi all. Excuse me because I am quite new to swing. What I want to do is this: I have these objects "contact", they store info like name, number , email etc, it has getters and setters for these properties. I then have a vector which holds a number of these contact objects. On my panel I have a Jlist in ...

82. JList    coderanch.com

if you want the JList to be left half of the frame, set the frame as a gridlayout 1 row 2 colums, and add the scrollpane(containing the JList) directly to the frame. it will then occupy the left half of whatever size the frame is. something like this import javax.swing.*; import java.awt.*; import javax.swing.event.*; class Testing extends JFrame { public Testing() ...

83. JLists    coderanch.com

84. CellRendering in JList    coderanch.com

hi, i want to design my list item with background image,font faces and sizes when it selected by using Html tags. for example, // Contacts(userName, userIcon); new Contacts("

Username", resources/id.gif") i got partially.. i couldn't set the images in that.. instaed of images, it shows image broken link. but the same ...

85. Reloading JLIST    coderanch.com

86. jlist    coderanch.com

87. JList question    coderanch.com

88. JList Problem    coderanch.com

89. Jlist question    coderanch.com

90. JList width    coderanch.com

91. Need help in JList    coderanch.com

92. Conversion from JList to java.util.List    coderanch.com

93. Jlist problems    coderanch.com

94. JList class    coderanch.com

private Object[] getAllStudents(Student[] students) { Object[] output = new Object[50]; Student s = null; // Add parts for(int i = 1; i < Student.getStudentCount(); i++) { s = students[i]; try { String temp = s.getID() + " " + s.getFName() + " " + s.getLName() + " " + s.getSSN(); //System.out.println(temp); output[i] = temp; } catch(NullPointerException ex) { output[i] = "--Student ...

95. need help on JList    coderanch.com

96. Dealing with Jlist    coderanch.com

I have one frame in which i have a Jlist box. AllGroupList the AllGroupList populates some user name dynamically. Now i have a edit button for that Jlist box. The edit button will open a dialog. The dialog will have two list box and search button to search new users so we can add users. 1) AvailableGrp_list 2) currentgrpmembership_listbox currentgrpmembership_listbox is ...

97. JList A real confusion.    coderanch.com

Please have a look on the following code. Try to run it. Check the code and let me know do we have any other good way to achieve the same thing? Code: import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.Graphics2D; import javax.swing.DefaultListCellRenderer; import javax.swing.DefaultListModel; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JScrollPane; import javax.swing.ListCellRenderer; import javax.swing.border.Border; import javax.swing.border.EmptyBorder; import javax.swing.border.LineBorder; import ...

98. JAVA JList Problem    coderanch.com

Hi everyone, I'm struggling again. . . I have a JList problem because I would want to know how to automatically highlight the DVD/ blu Ray stock in their respective colours (green for DVD, yellow for blu Ray) for that movie title. I already have the highlighting done in my code. For a visual image of the assignment, here it is. ...

99. Problem with JList    coderanch.com

this is the code that reads form txt: where "model" is Jlist model try { if(grm==1) { FileReader file = new FileReader("gramatica1.txt"); BufferedReader buff = new BufferedReader(file); boolean eof = false; while (!eof) { String line = buff.readLine(); if (line == null) eof = true; else model.addElement(String.valueOf(line)); and i have tried to read from list: the line i'm tryng to read ...

100. JList problem    coderanch.com

this is the code that reads form txt: where "model" is Jlist model # try { if(grm==1) { FileReader file = new FileReader("gramatica1.txt"); BufferedReader buff = new BufferedReader(file); boolean eof = false; while (!eof) { String line = buff.readLine(); if (line == null) eof = true; else model.addElement(String.valueOf(line)); and i have tried to read from list: the line i'm tryng to ...