ConstructorĬonstructs a new FlowLayout object with a centered alignment and horizontal and vertical gaps with the default size of 5 pixels.Ĭreates a new flow layout manager with the indicated alignment and horizontal and vertical gaps with the default size of 5 pixels. The following table lists constructors of the FlowLayout class.
#Nullpointerexception java new flowlayout code#
The code snippet below creates a FlowLayout object and the components it manages.ĬtComponentOrientation( Another constructor of the FlowLayout class specifies how much vertical or horizontal padding is put around the components. To specify that the row is to aligned either to the left or right, use a FlowLayout constructor that takes an alignment argument. If the container is wider than necessary for a row of components, the row is, by default, centered horizontally within the container. If the horizontal space in the container is too small to put all the components in one row, the FlowLayout class uses multiple rows. The FlowLayout class puts components in a row, sized at their preferred size. Alternatively, to compile and run the example yourself, consult the example index. Java™ Web Start ( download JDK 7 or later).
The following figure represents a snapshot of an application that uses the flow layout:Ĭlick the Launch button to run FlowLayoutDemo using If you are interested in using JavaFX to create your GUI, seeįlowLayout class provides a very simple layout manager that is used, by default, by the JPanel objects.
Otherwise, if you want to code by hand and do not want to use GroupLayout, then GridBagLayout is recommended as the next most flexible and powerful layout manager. If you are not interested in learning all the details of layout management, you might prefer to use the GroupLayout layout manager combined with a builder tool to lay out your GUI. Note: This lesson covers writing layout code by hand, which can be challenging.
0 kommentar(er)
