原文 Java 2 Micro Edition and the World of Java 1 Introduction The computer revolution of the 1970s increased the demand for sophisticated computersoftware to take advantage of the ever-increasing capacity of computers to process data.The C programming language became the linchpin that enabled programmers to buildsoftware that was just as robust as the computer it ran on. As the 1980s approached, programmers were witnessing another spurt in the evolutionof programming language. Computer technology advanced beyond the capabilities of the C programming language. The problem wasn’t new. It occurred previously and caused the demise of generations of programming languages. The problem was thatprograms were becoming too complicated to design, write, and manage to keep up with the capabilities of computers. It was around this time that a design concept based on Simula 67 and Smalltalk (from the late 1960s) moved programming to the next evolutionary step. This was the period when object-oriented programming (OOP), and with it a new programming language called C++, took programmers by storm. In 1979, Bjarne Stroustrup of Bell Laboratories in New Jersey enhanced the C programming language to include object-oriented features. He called the language C++. (The ++ is the incremental operator in the C programming language.) C++ is truly an enhancement of the C programming language, and it began as a preprocessor language that was translated into C syntax before the program was processed by the compiler. Stroustrup built on the concept of a class (taken from Simula 67 and Smalltalk), from which instances of objects are created. A class contains data members and member functions that define an object’s data and fun...
