visual basic barcode printing 11: Coding Standards in Java

Creating PDF417 in Java 11: Coding Standards

11: Coding Standards
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As we mentioned earlier, even the failure to indent properly or line up your comments can mean the difference between passing and failing the exam. We ll cover the relevant parts of the Java Coding Conventions that you must be very meticulous about in every single line in every single class in your application.
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12: Clarity and Maintainability
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This is where the whole Team Work mentality (or, if you prefer, the homicidal maniac thing) comes in. We ll look at what makes your code easy to read and maintain (and conversely, what makes it a pain to read and maintain), and cover things like reducing logic complexity, appropriate error-handling, and adhering to some fundamental OO principles.
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10: Introduction to the SCJD
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13: GUI Usability
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Don t you just hate it when you re working in an application that makes you type things like yes or no rather than providing radio buttons Or what about a nonstandard menu you know, without a File and Help menu Or worse, no menu bar at all. Or one that bombards you with dialog boxes for every little move you make. Or things that should scroll that don t. Or when you resize a window and things land anywhere other than where they were before. A well-designed GUI must be usable, useful, and not clumsy. Fortunately, there are established human interface guidelines to help inform our design, and that s what we ll look at in this chapter.
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14: Networking Issues
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Hmm, what to choose RMI or sockets We ll cover the main points and then even though there is definitely not a right choice for the exam we ll spend most of the time on our personal favorite, RMI. And why laziness isn t necessarily a bad trait in a programmer.
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15: Database Issues
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We know, we know in the real world surely someone would just buy a database. Heck, there are free ones out there. But for the purposes of assessing your development skills, thinking through (and implementing) the tricky and subtle issues of concurrency will do nicely. So pretend, for the time being, that there is no such thing as a database. Or that you re the first person to have to build one. We ll look at some of the things you ll need to be thinking about in your design, and how crucial threads are to your design and implementation.
16: Exam Documentation
Remember when we said your job was to make the assessor s life easier (The assessor representing both the end-user and the client and the project manager of this application.) Now s your chance to shine. Or not. We ll look at everything from status messages to comments, but most of the focus is on javadoc, which you must provide for all repeat all classes and interfaces.
Understand the Sun Certified Java Developer Exam Process
17: Final Submission and Essay
Real Women Ship the saying goes (or something like that) and now it s time for you to call your application finished and package it up in a nice JAR and send it out. We ll emphasize the importance of getting your directory structures just right, and what you ll need to do at the command-line to run from the JAR in a particular way.
Key Points Summary
No time like the present to get started. But before we jump into code conventions, here s a quick summary of the points from this chapter:
The Developer exam is in two parts, the Assignment and the Essay. You must complete (and pass) both parts to become certified. The Assignment is a set of instructions for building and delivering the
application.
Once you ve submitted your Assignment, you can register for the Essay
portion of the exam.
You re given a minimum of one year to complete the Assignment (from the
time you register and download it).
Most candidates take between 90 and 120 hours to complete the Assignment. You re given 90 minutes on the Essay portion of the exam. You must be a Sun Certified Java Programmer (for Java 2) in order to register
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