组件整理(国外英文资料).docVIP

组件整理(国外英文资料) AWT is an abstract window toolset that is used to make graphical user interfaces SWING is also used to make graphical user interfaces The difference between AWT and SWING is AWT is a heavyweight, the program will change with the operating system, the reason is the use of native code; SWING is lightweight, the program will not change with the change of operating system. A graphical object that collects user actions A container is also a component that can add other components AWT: Component method: 1.getComponentAt (int, x, int, y) gets the components on that coordinate according to coordinates 2.getFont () gets the font of the component 3.setForeground () sets the foreground color (text color) GetForeground () gets the foreground color SetBackground () sets the background color SetSize () sets the component size 4.nextFocus () obsolete method gets the focus of the next component of the current component 5.requestFocus () request focus Frame is a top-level container that can only be added to other components or containers and cannot be added to other containers Panel is an intermediate container that places other components or intermediate containers and must be added to the top-level container Swing: Top level container: JFrame/JApplet/JDialog/JWindow The top-level container will have a content pane that is added to the top-level container by default, and the size is as large as the top-level container, which defaults to the intermediate container and can be replaced. Get the content pane: getContentPane (); The essence of adding components to a top-level container is to add components to the content pane Basic method: Window size SetSize (int, x, int, y); Dimension, d=new, Dimension (int, x, int, y); setSize (Dimension, D); SetExtendedState (JFrame.MAXIMIZED_BOTH); Set window location SetLocation (int, x, int, y); SetLocationRelativeTo (null); Settings visible SetVisible (true/false); Set location of components under absolute positioning SetBounds (