If the API is not well understood or (Business web hosting)
If the API is not well understood or subject to change, you should create the implementation first. Later you can derive the interface from the implementation (see the Refactoring Code section in Chapter 2). . If it later becomes necessary to extend the interface definition, you can pull down these extensions into the implementation by using the Source > Override Methods context function or by using the Content Assistant. . Javadoc comments should be always created with the Source > Add JavaDoc Comment context function or by entering /**. This helps to achieve consistent and complete API documentation. . Completing the Create a New Java Class dialog carefully is well worth the effort. By specifying super classes and interfaces and by marking the various options, you can save considerable typing, because Eclipse will generate the method and constructor stubs for you. . After making large changes in a compilation unit you should call the Source > Organize Imports context function. This function adds missing import statements and removes unused ones. . Using the Code Assistant (Ctrl+Spacebar) for program constructs, type, and fieldnames saves you a lot of typing and a lot of searching in the documentation and can possibly protect you from RSI (repetitive strain injury). At the same time, the Code Assistant can generate the necessary import statements (if this option was set in the preferences). Ctrl+Spacebar should become the typical gesture of an Eclipse programmer. In the next chapter we will look at testing and debugging Java applications with Eclipse. 111 Project One: Duke Speaks
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