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Questions tagged [boxlayout]

BoxLayout is a Java Swing layout manager that allows multiple components to be laid out either vertically or horizontally.

BoxLayout is a layout manager that allows multiple components to be laid out either vertically or horizontally. The components will not wrap so, for example, a vertical arrangement of components will stay vertically arranged when the frame is resized.

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Nesting multiple panels with different combinations of horizontal and vertical gives an effect similar to GridBagLayout, without the complexity. The diagram shows two panels arranged horizontally, each of which contains 3 components arranged vertically.

For examples and more details refer to How to Use BoxLayout tutorial.

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error upon assigning Layout: BoxLayout can't be shared

I have this Java JFrame class, in which I want to use a boxlayout, but I get an error saying java.awt.AWTError: BoxLayout can't be shared. I've seen others with this problem, but they solved it by creating the boxlayout on the contentpane, but that…
Ulrik
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How can I add a space in between two buttons in a boxLayout?

I have four buttons in a BoxLayout group. This is just a sample of two because it's all repeated code. I want to create a slight space between each button so they don't run into each other. I have tried practically every method in the…
Susie
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How to make a JPanel expand to max width in another JPanel

I feel I need to rephrase the question a bit. Updated question below. I have a JPanel that contains: myjpanel.setLayout(new BoxLayout(selectors, BoxLayout.PAGE_AXIS)); It contains the following three panels: JPanel with fixed size 'x' and…
Martin Nielsen
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java BoxLayout panel's alignment

I have browsed around and haven't found a solution that specifically tailors to my situation. I have a panel that I display in a dialog box: //create dialog panel JPanel panel = new JPanel(); panel.setLayout(new BoxLayout(panel,…
whitewolfpgh
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How to set component size inside container with BoxLayout

I'm facing a problem with using BoxLayout. In my example, I try to decrease the height of the text field and change the width of the buttons (as shown in green marker in the picture at the bottom). I know about the techniques setPreferredSize() and…
Dumas45
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Why do you need to invoke setLayout with BoxLayout?

Most layout managers have no-argument constructors (that is, you can create a FlowLayout with new FlowLayout (), a GridLayout with new GridLayout (), a GridBagLayout with new GridBagLayout (), etc.). However, BoxLayout requires that you pass both…
wchargin
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Swing BoxLayout problem - Can't make the Fillers do their job

What i'm trying to do In Swing, I'm trying to use a BoxLayout or equivalent linear container, but the items in the container are stretching vertically. Inside my application, I don't want them to stretch vertically. I know i could set a…
Joel
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Java Swing BoxLayout ignoring AlignmentX

In the code below, by calling setAlignmentX with Component.LEFT_ALIGNMENT I expected to get a left aligned label over a centered slider. For some reason the label is also centered, seemingly regardless of what value is passed to setAlignmentX. What…
Mizipzor
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Why can't a BoxLayout be shared whereas a FlowLayout can?

I am confused by the following. Case A Set the layout manager for a JFrame as a BoxLayout. Add a JButton to the JFrame container. Compile. Run. Exception thrown: "Exception in thread "AWT-EventQueue-0" java.awt.AWTError: BoxLayout can't be…
danger mouse
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Alignment of Single Characters in Java BoxLayout on Y-Axis Is Off-Center

There seems to be an issue with aligning certain characters to the center of a BoxLayout along the y-axis in Java. I don't know what could cause this, & I've created an SSCCE to demonstrate the effect. In the example, I only use the character 'a', &…
Scott Hetrick
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Swing BoxLayout problem with JComboBox without using setXXXSize

here's an SSCCE: import java.awt.Color; import java.awt.Dimension; import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; public class…
Heisenbug
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NullPointerException in BoxLayout

Does anybody have an idea how I could start debugging this error in Java Swing? Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.BoxLayout.preferredLayoutSize(BoxLayout.java:282) at…
Bart van Heukelom
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Please help me understanding BoxLayout alignment issues

I'm trying to create a very simple window using Java Layouts. I have got three elements to arrange: a button, a progress bar and a label. The button has to be vertically centered, the progress bar has to take full width, and the label has to be left…
gd1
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Aligning JLabel to Left or Right inside BoxLayout with Y_AXIS Constraint of JPanel

I have a JPanel with Constraint's of Y_Axis so that whenever I add a new Component it will automatically be Added on a new Line.But the Problem is that the Label inside is not Aligned to Left or Right. It is displayed at some distance above the…
Adnan Mohib
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setAlignmentX(CENTER_ALIGNMENT) does not center boxLayout in JFrame

I want to keep my two JLabel text have Left alignment and at the same time place my boxLayout in the center of the JFrame. I tried setAlignmentX(CENTER_ALIGNMENT) on my boxlayout panel but it's not placing my boxlayout in the center. import…
user2211678
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