AWT-概述 - 芒果文档

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📜 AWT-概述

📅 最后修改于: 2020-11-18 07:45:58 🧑 作者: Mango

图形用户界面

图形用户界面(GUI)通过一些图形组件提供用户交互。例如，我们的基础操作系统还通过窗口，框架，面板，按钮，文本字段，TextArea，列表框，组合框，标签，复选框等提供了GUI。这些都称为组件。使用这些组件，我们可以为应用程序创建交互式用户界面。

GUI为最终用户响应引发的事件提供结果。GUI完全基于事件。例如，单击按钮，关闭窗口，打开窗口，在文本区域中键入内容等。这些活动称为events.GUI，最终用户可以更轻松地使用应用程序。这也使它们变得有趣。

Term	Description
Component	Component is an object having a graphical representation that can be displayed on the screen and that can interact with the user. For examples buttons, checkboxes, list and scrollbars of a graphical user interface.
Container	Container object is a component that can contain other components.Components added to a container are tracked in a list. The order of the list will define the components’ front-to-back stacking order within the container. If no index is specified when adding a component to a container, it will be added to the end of the list.
Panel	Panel provides space in which an application can attach any other components, including other panels.
Window	Window is a rectangular area which is displayed on the screen. In different window we can execute different program and display different data. Window provide us with multitasking environment. A window must have either a frame, dialog, or another window defined as its owner when it’s constructed.
Frame	A Frame is a top-level window with a title and a border. The size of the frame includes any area designated for the border. Frame encapsulates window. It and has a title bar, menu bar, borders, and resizing corners.
Canvas	Canvas component represents a blank rectangular area of the screen onto which the application can draw. Application can also trap input events from the use from that blank area of Canvas component.

以下是基于GUI的应用程序的一些示例。