![]() setting flow layout of right alignmentį.setLayout(new FlowLayout(FlowLayout. ![]() It is the default layout of the applet or panel.įlowLayout(): creates a flow layout with centered alignment and a default 5 unit horizontal and vertical gap.įlowLayout(int align): creates a flow layout with the given alignment and a default 5 unit horizontal and vertical gap.įlowLayout(int align, int hgap, int vgap): creates a flow layout with the given alignment and the given horizontal and vertical gap.Įxample of FlowLayout class: Using FlowLayout(int align) constructorį.add(b1) f.add(b2) f.add(b3) f.add(b4) f.add(b5) The Java FlowLayout class is used to arrange the components in a line, one after another (in a flow). Set Layout (new FlowLayout (FlowLayout.LEFT)) ī2=new Button("Button 2") b3=new Button("Button 3") Public class FlowLayout Demo extends Frame When no more components fit on a line, the next one appears on the next line.įlowLayout() // creates a flow layout with centered alignment and a default 5 unit horizontal and vertical gap.įlowLayout(int alignment) //creates a flow layout with the given alignment and a default 5 unit horizontal and vertical gap.įlowLayout(int alignment, int horz_gap, int vert_gap) // creates a flow layout with the given alignment and the given horizontal and vertical gap. Components are laid out from the upper left corner, left to right, and top to bottom. It simply arranges components in a single row, starting a new row if its container is not sufficiently wide. Puts components into the left (actually, LINE_START) and center locations.It is the default layout manager for the container Panel and Applets. One of many examples that puts a single component in the center of a content pane, so that the component is as large as possible.Ĭreates a JPanel object that uses the BorderLayout class. Puts a component in each of the five possible locations. Select one: setGUILayout setLayout setLayoutManager setManager //2 The BorderLayout layout manager: Select one: divides an area into five regions: NORTH, SOUTH, EAST, WEST and CENTER. The following table lists code examples that use the BorderLayout class and provides links to related sections. Engineering Computer Science Computer Science questions and answers //1 Method can be used to set the layout manager of a container. Sets the vertical gap between components. Sets the horizontal gap between components. If no call to setLayout( ) is formed, then the default layout manager is employed. Specifying gaps Constructor or MethodīorderLayout(int horizontalGap, int verticalGap)ĭefines a border layout with specified gaps between components. The layout manager is about by the setLayout( ) method. The following table lists constructors and methods to specify gaps (in pixels). For example:Īdd(BorderLayout.CENTER, component) //valid but old fashionedĪdd("Center", component) //valid but error prone If this component is missing from a container controlled by a BorderLayout object, make sure that the component's location was specified and no another component was placed in the same location.Īll tutorial examples that use the BorderLayout class specify the component as the first argument to the add method. Specify the component's location (for example, BorderLayout.LINE_END) as one of the arguments to the add method. Pane.add(button, BorderLayout.LINE_START) īutton = new JButton("Long-Named Button 4 (PAGE_END)") Make the center component big, since that's theīutton = new JButton("Button 2 (CENTER)") ītPreferredSize(new Dimension(200, 100)) īutton = new JButton("Button 3 (LINE_START)") Pane.add(button, BorderLayout.PAGE_START) JButton button = new JButton("Button 1 (PAGE_START)") Container pane = aFrame.getContentPane(). These areas are specified by the BorderLayout constants: Alternatively, to compile and run the example yourself, consult the example index.Īs the preceding picture shows, a BorderLayout object has five areas. Java™ Web Start ( download JDK 7 or later). The following figure represents a snapshot of an application that uses theĬlick the Launch button to run BorderLayoutDemo using Content panes use BorderLayoutby default. ![]() Each JPanelobject is initialized to use a FlowLayout, unless you specify differently when creating the JPanel. If you are interested in using JavaFX to create your GUI, see Setting the Layout Manager As a rule, the only containers whose layout managers you need to worry about are JPanelsand content panes. 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 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |