GUI programming of Java

the library that can be used is AWT , i.e. Abstract Windowtoolkit

Current second generation GUI The development library is Swing , with more sophisticated control support.

Component with the Container is a AWT two of the most important classes in the Component is the parent class of all control classes, and Container is a Window , Frame , Panel such as the parent class of the container class.

layout coordinate system with horizontal direction of x axis, vertical direction is y axis.

The layout manager, which provides coordinates when a control needs to be drawn.

Java The CCP has 5 species: FlowLayout , GridLayout , BorderLayout , CardLayout , GridBagLayout . If you want to customize the layout, you can set it to null.

Event encapsulates a control for a given registered Listener data that is used for handling events.

used in Listener have a WindowListener , ActionListener , MouseListener with the Adjustmentlistener (scroll bar Scrollbar ). Listener is an interface, and if you want to implement such an interface, you must override all methods, thus producing a Adapterthat can optionally override some of the methods.

An inner class that can access private members of an external class.

UI object, which is the control

Choice : drop-down list

Checkbox : Multiple options available

CheckboxGroup : Only Radio

List : Multiple selection lists

Dialog The modal is set to true , a response must be made. In addition,Dialog can not be separated from Frame implementation.