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visual age for javaa provides a good ide for object oriented development. one of the strong points of visual age for java is its support for javabeans. as everyone in the world knows by now javabeans are components, or software parts, from which applications can be built. this has been the holy grail of object-oriented development, and visual age for java supports it well. it provides a convenient, connect-the-dots metaphor for assembling an application from parts.
one of the obvious questions one might ask, of course, is, "where do the parts come from?" ibm does supply some javabeans with visual age for java but, naturally, they wont do everything. if you need parts, and theyre not available, visual age for java makes the process easy. once youve made the new parts they are reusable in any application. they can even be exported for use outside vaj.
ill illustrate this with the string bean. lets say youve developed a number of string handling functions that could be used in various situations or programs. you could simply include them when theyre needed in a new application but javabeans provides a better alternative. you can reuse beans without changing, or even knowing about, the code itself. you can then expose the methods or properties of the bean and connect your application to them.... 下一页