使用java開發(fā)連連看游戲后畢業(yè)設(shè)計(jì)外文文獻(xiàn)及翻譯(存儲版)
【正文】 鍵的點(diǎn)擊的，因?yàn)?Macintosh 只有一個鼠標(biāo)鍵，所以其它的每個平臺都要表現(xiàn)得好像自己也只支持一個鼠標(biāo)鍵一樣。 建立這個橋梁的機(jī)制被稱為 可插式 LookandFeel（它很接近主題的概念，在 linux 社區(qū)中非常流行）。 Java2 版本引入了 包。 API 的其它部分由 層次結(jié)構(gòu)中的其它包提供，包括、 和 。其中每一個都是抽象類，他們都是兩個名為 Double 和 Float 的非抽象內(nèi)部類（它們是抽象外部類的子類）。多數(shù)情況下是使用雙精度值，并且角度是用弧度來度量的（而不是 Arc2D 類中使用的度）。 這個 API 包括一個詳細(xì)的規(guī)范文檔和 、 包的實(shí)現(xiàn)。 Speech Java Speech API 允許開發(fā)人員將語音技術(shù)整合到 Java applet 和應(yīng)用程序的用戶界面中。 Java Media Framework（ JMF） JMF 是一種 API，可以將音頻、視頻和其它基于時間的媒體整合到 Java 應(yīng)用程序和 applet 中。這個領(lǐng)域的其它 API 還有 Java 3D、 Advanced Imaging（高級圖像處理）、 Image I/O（圖像 I/O）、 Java Media Framework（ JMF，Java 媒體框架）和 Speech（語音）。每一個轉(zhuǎn)換都可以用一個 3x3 的矩陣來表示，該矩陣規(guī)定轉(zhuǎn)換的源點(diǎn)和目標(biāo)點(diǎn)之間的映射。如果使用第二種選擇，就可以使用 2D API 的所有附加功能。隨著 Java 2D API（它包含一個真正的功能集）的出現(xiàn)，所有的一切都改變了。 另外，您可以制作自己的 lookandfeel。 最好的方法 Swing 沒有完全遵循 Java 語言作為一個平臺的路線。 AWT 只提供了有限的一套組件，是因?yàn)樽钚」帜阜椒ㄖ挥挟?dāng)一個特殊的組件或功能在每個平臺上都可用的時候才能夠被提供。它不僅是 AWT 所提供的組件的替代品，并且在這些組件的基礎(chǔ)上有了很大進(jìn)步。在本文中，我們將探究這個進(jìn)步，詳細(xì)審視當(dāng)前 版本的功能，最后展望一下未來，看看發(fā)行版 會提供些什么。t use the native ponents of the platform like the AWT does. Instead, they use lightweight ponents that are drawn to have the same appearance as the native ponents. This is good for functionality, but there are always some differences in look or behavior, so plex interfaces will never be identical to ones that use native ponents. Furthermore, you can roll your own lookandfeel, which is a great ability to have when crafting one for highly specialized applications or when providing a corporate lookandfeel across a range of applications. Platformindependent drag and drop JDK added a general mechanism, found in the package, that enabled the transferring of data between and within applications, as well as the ability to manipulate the system clipboard. The package was introduced in the Java 2 version. This package builds on the datatransfer mechanism by providing draganddrop facilities that can operate in a platformindependent manner within a single Java application or between two Java applications. It can also behave in a platformdependent manner in order to integrate with the draganddrop facilities of the native platform. The Drag and Drop (DND) API is quite challenging to use because it operates at a high level of abstraction to support the different ways in which it can work and because it is designed to operate on arbitrary datatypes, as specified by the interface. Let39。ll explore this progression, examine the capabilities of the current version in detail, and finish by looking to the future to see what release will offer. Prior to the release of the Java 2 platform, the Abstract Window Toolkit (AWT) was the extent of the Java platform39。 and basic imagedrawing functionality. All that changed with the introduction of the Java 2D API, which contains a substantial feature set. The core of this API is provided by the class, which is a subclass of . The remainder of the API is provided by other packages within the hierarchy, including , , and . The class This class is a subclass of , the class that provided graphical capabilities prior to the Java 2 release. The reason for this arrangement: backwards patibility. Components are still rendered by calling their paint() method, which takes a Graphics object. In the current version of the language, though, the object is really a Graphics2D object. This means that a paint() method can either use the Graphics object as a Graphics object (using the old drawing methods) or cast it to a Graphics2D object. If it uses the second option, then any of the additional capabilities of the 2D API can be used. The package The package provides a number of classes relating to twodimensional g
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