![]() The main characteristics of this architecture are: Swing API in Java adapts MVC (Model View Controller) Architecture. Also, Swing has various advanced component tabbed panes. So swing in a way acts as a replacement of AWT. In general, the Swing API has every control defined in javax.swing package that is present in AWT. So in a javax.swing package, we will have classes like JButton, JFrame, JTextField, JTextArea, etc. The classes in the javax.swing package begins with the letter ‘J’. The Swing framework in Java is provided through the ‘javax.swing’ package. The Swing framework is written entirely in Java. But unlike AWT, the Swing components are light-weight and are platform-independent. The Swing framework in Java is built on top of the AWT framework and can be used to create GUI applications just like AWT. JFC is an API that is similar to MFCs (Microsoft Foundation Classes) in C++. The Swing framework in Java is a part of Java Foundation Classes or commonly called JFCs. In this tutorial, we will discuss yet another GUI framework in Java i.e. Another disadvantage of AWT is its heavyweight components. AWT is one of the oldest GUI frameworks in Java and is also platform dependent. ![]() We have seen one in our previous tutorial i.e. Uses a panel with a right-aligned FlowLayout presenting two buttons.Java provides many GUI frameworks that help us in developing a variety of GUI applications. How to Use Buttons, Check Boxes, and Radio Buttons If you set the RIGHT_TO_LEFT constant to true and recompile, you can see how FlowLayout handles a container that has a right-to-left component orientation.Ĭenters a component nicely in the top part of a BorderLayout, and puts the component in a JPanel that uses a FlowLayout. Sets up a content pane to use FlowLayout. The following table lists code examples that use the FlowLayout class and provides links to related sections. The hgap and vgap arguments specify the number of pixels to put between components. When the FlowLayout object controls a container with a left-to right component orientation (the default), the LEADING value specifies the components to be left-aligned and the TRAILING value specifies the components to be right-aligned.įlowLayout (int align, int hgap, int vgap)Ĭreates a new flow layout manager with the indicated alignment and the indicated horizontal and vertical gaps. The alignment argument can be FlowLayout.LEADING, FlowLayout.CENTER, or FlowLayout.TRAILING. 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. 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.
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