O'Reilly Head First Design Patterns
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1. Look familiar My tustomers or users decide they want something else or they want new functionality My Company decided it is going with another database vendor and it is also purchasing its data from another supplier that uses a different data format Argh Well technology changes and we ve got to update our code to make use of prototols We ve learned enough building our system that we d like to go back and do things a little better init ara hara you are nere gt 352. intro to Design Patterns Let s give your right brain something to do It s your standard crossword all of the solution words are from this chapter Across Down 2 Grilled cheese with bacon 1 High level libraries 4 Duck demo was located where 3 Learn from the other guy s qt what varies 5 Java IO Networking Sound 9 Most patterns follow from OO 6 Program to this not an implementation 14 Pattern that fixed the simulator 8 Favor over inheritance 15 Patterns give us a shared 10 Duck that can t quack 16 Design patterns 11 Rick was thrilled with this pattern 17 Development constant 12 Patterns go into your 18 Patterns ____ in many applications 13 Rubberducks make a 33 intro to Design Patterns Solutions oer your pencil Which of the following are disadvantages of using subclassing to provide specific Duck behavior Choose all that apply W A Codeis duplicated across subclasses Wo Hard to gain knowledge of all duck behaviors B Runtime behavior changes are difficult d D Ducks can t fly and quack at the same time d C We can t make duck s dance Wer Changes can unintentionally affect other ducks a 7 7 F R A M E Ww O R K S oo zZ r 00 m a ZAMHAMODxkK MM m adb nomz H ZowxAHNO V Ra carx oam oe nw Ge Sharpen your pencil What are some factors that drive change in your applications You might have a very different list but here s a few of ours
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