Eclipse中文教程:Ruby集成与环境设置详解

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"《Ruby编程指南:Eclipse下的实践教程》" 这本名为《Book of Ruby》的学习资料是一本深入浅出的Ruby编程教材,特别强调了如何在Eclipse集成开发环境中进行学习和实践。Eclipse作为一个广泛使用的跨平台IDE(集成开发环境),在书中被详细介绍,包括其作为Ruby开发工具的优势和特性。 章节一着重于Eclipse的基础介绍,涵盖了Eclipse的历史背景,它如何发展成为支持多种编程语言的高效开发工具。作者提到Eclipse的不同版本,以及其跨语言和跨平台能力,使得Ruby开发者可以无缝地在多种操作系统上工作。 在第二部分,读者可以深入理解Eclipse的核心架构,包括工作区(workspace)和工作台(workbench)的构成。工作区是用户存放项目文件的组织结构,而工作台则是交互界面,包含视图(如查看器和编辑器)、视景(Perspective)以及菜单和工具栏。这部分详细讲解了如何排列视图、编辑器和视景,以便优化开发体验。 第三部分深入探讨了Eclipse的高级功能,如放置游标、重新排列界面元素、创建书签、使用快速视图进行文件对比、管理历史记录以及设置喜好(Preferences)。偏好设置允许用户个性化他们的工作环境,如调整界面外观、功能选项、颜色字体设置以及比较和修复工具。 此外,书中还涉及作业和标记的管理,帮助开发者更好地组织和跟踪代码,以及如何使用书签和快速视图提高工作效率。比较功能在处理代码差异和版本控制中尤为重要,而回应UI则关注用户体验和反馈。 《Book of Ruby》不仅提供了丰富的Ruby语法和词法知识,还为读者提供了一个实用的Eclipse开发平台指南,适合初学者和有经验的Ruby开发者提升开发效率和掌握Eclipse这款强大的开发工具。通过这本书,读者将能更有效地编写、调试和管理Ruby代码,实现高效开发。

use java language ,In this project you need to write a book lending system for a Library. The system has different roles for registered users. There are two types of user roles: borrower and lender. Write an IUser interface for library users, with the following UML specification: +----------------------------------+ | <<interface>> | | IUser | +----------------------------------+ | + getName(): String | | + getBook(): int | | + moreBook(int number): void | +----------------------------------+ and a User class that implements IUser and has the following UML specification: +-----------------------------------+ | User | +-----------------------------------+ | - name: String | | - book: int | +-----------------------------------+ | + User(String name, int book) | | + getName(): String | | + getBook(): int | | # setBook(int book): void | | + moreBook(int number): void | | + testUser(): void | +-----------------------------------+ The name instance variable indicates the user name. The book instance variable indicates the number of books borrowed by the user. The setBook method changes the number of books borrowed by the user. The setBook method is protected, not public. This means that only subclasses of the User class can use the setBook method. All the other classes in the system cannot use the setBook method, so they cannot change the number of books borrowed by a user. The purpose of the moreBook method is to increase the number of books borrowed or lent by the user (depending on what kind of user it is) by the number given as argument to the method. The moreBook method of the User class is abstract, since we do not know what kind of role the user is (a borrower borrows books from other users and a lender lend books to other users). Also add to your program a Test class to test your User class. public class Test { public static void main(String[] args) { User.testUser(); } }

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