java介绍外文翻译
外文原文 Introduction to Java autor：Martin Ngobye. source：Computing Static Slice for Java Programs Java is designed to meet the challenges of application development in the context of heterogeneous, network-wide distributed environments. Paramount among these challenges is secure delivery of applications that consume the minimum of system resources, can run on any hardware and software plat, and can be extended dynamically. Java originated as part of a research project to develop advanced software for a wide variety of network devices and embedded systems. The goal was to develop a small, reliable, portable, distributed, real-time operating plat. When the project started, C++ was the language of choice. But over time the difficulties encountered with C++ grew to the point where the problems could best be addressed by creating an entirely new language plat. Design and architecture decisions drew from a variety of languages such as Eiffel, SmallTalk, Objective C, and Cedar/Mesa. The result is a language plat that has proven ideal for developing secure, distributed, network based end-user applications in environments ranging from network-embedded devices to the World-Wide Web and the desktop. The design requirements of Java are driven by the nature of the computing environments in which software must be deployed. The massive growth of the Internet and the World-Wide Web leads us to a completely new way of looking at development and distribution of software. To live in the world of electronic commerce and distribution, Java must enable the development of secure, high perance, and highly robust applications on multiple plats in heterogeneous, distributed networks. Operating on multiple plats in heterogeneous networks invalidates the traditional schemes of binary distribution, release, upgrade, patch, and so on. To survive in this jungle, Java must be architecture neutral, portable, and dynamically adaptable. The Java system that emerged to meet these needs is simple, so it can be easily programmed by most developers; familiar, so that current developers can easily learn Java; object oriented, to take advantage of modern software development ologies and to fit into distributed client-server applications; multithreaded, for high perance in applications that need to per multiple concurrent activities, such as multimedia; and interpreted, for maximum portability and dynamic capabilities. Together, the above requirements comprise quite a collection of buzzwords, so let’s examine some of them and their respective benefits before going on. What’s completely new is the manner in which Java and its run-time system have combined them to produce a flexible and powerful programming system Developing your applications using Java results in software that is portable across multiple machine architectures, operating systems, and graphical user interfaces, secure, and high perance, With Java, your job as a soft
