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O''''''''Reilly Network For Information About''''''''s Book part 78 ppt

O''''Reilly Network For Information About''''s Book part 78 ppt

O''''Reilly Network For Information About''''s Book part 78 ppt

... std::greater_equal, and so forth), but only use comparisons that already exist for the typeswe cannot define new ones at the call site. We'll use a class called personal_info for the purpose of ... already contains an instance of some_class, so there's only need for one placeholder (_1) and one argument (a string) for the function call operator. Finally, we could also have created ... comparison operators. The sorting to be performed based on the age (available through the member function age). We could create a function object just for that purpose. class personal_info_age_less_than...
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O''''Reilly Network For Information About''''s Book part 1 ppt

O''''Reilly Network For Information About''''s Book part 1 ppt

... technical questions about this book, send email to: bookquestions@oreilly.com For information about books, conferences, Resource Centers, and the O'Reilly Network, see the O'Reilly ... favorite technology book, it means the book is available online through the O'Reilly Network Safari Bookshelf. Safari offers a solution that's better than e-books. It's a virtual ... (international/local) (707) 829-0104 (fax) There is a web page for this book, which lists errata, examples, or any additional information. You can access this page at: http://www.oreilly.com/catalog/beyondjava...
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O''''Reilly Network For Information About''''s Book part 11 ppt

O''''Reilly Network For Information About''''s Book part 11 ppt

... complex for no good reason. .3. Typing One of the most fiercely debated topics in programming languages is the benefit of strong, static typing strategies. Java's strategy opts for ... a type is enforced, or interpreted. In a weakly typed language (like C), variables can be coerced easily, or interpreted as something else. A strongly typed language strictly enforces compatible ... Python also enforce strong typing, which might surprise you. Many developers believe Smalltalk, Python, and Ruby are so productive because they are weakly typed. They are misinformed. Consider...
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O''''Reilly Network For Information About''''s Book part 12 pptx

O''''Reilly Network For Information About''''s Book part 12 pptx

... The type is bound to the object. Therefore, the type of containers can change. An imperfect rule of thumb is that static languages force you to declare variables, but dynamic languages ... different, and convert objects that aren't. The extra syntax provides valuethe compiler has more information to catch bugs earlier. There's a cost, too. Static typing makes you work harder ... compelling, especially for the dynamic, reflective style of programming that leading Java developers seek today. As you add the Web and other deployment steps, the case for dynamic languages...
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O''''Reilly Network For Information About''''s Book part 13 ppt

O''''Reilly Network For Information About''''s Book part 13 ppt

... on information in a variable's type. You can't always get the same contextual information out of a Ruby or Smalltalk IDE. 4 http://www.agiledeveloper.com/articles/GenericsInJavaPartI.pdf, ... ever opt for strong, static typing. There are at least two compelling reasons to do so. Static typing reduces certain types of errors (like misspelled variable names), and provides more information ... http://www.agiledeveloper.com/articles/GenericsInJavaPartI.pdf, GenericsInJavaPartII.pdf, GenericsInJavaPartI.pdf.  You lose type safety when you mix nongenerics with generics. For example, List notGeneric = genericList;...
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O''''Reilly Network For Information About''''s Book part 17 ppt

O''''Reilly Network For Information About''''s Book part 17 ppt

... that I interviewed for this book recognized that static typing limits productivity for application development dramatically, though some said they were willing to pay the cost for certain types ... Static typing enforces typing rules at compile time, when they are least expensive to fix.  Static interfaces make it easier to enforce a protocol across important boundaries. For example, systems ... should be much more consistent, and cleaner. The characteristics in Table 5-4 would form a cleaner foundation for another 10 years of successful growth. Table 5-4. Important language features...
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O''''Reilly Network For Information About''''s Book part 19 pptx

O''''Reilly Network For Information About''''s Book part 19 pptx

... same syntactic sugar for hashes as for arrays.  Code blocks make iteration tighter and easier. If you're a big Java collections user who's used a dynamic language before, you probably ... 10) = = = 5 => true You get more convenient syntactic sugar. Now, a for loop turns into this: irb(main):021:0> for c in 'g' 'k' irb(main):022:1> puts c 6.1.7. ... Java, numbers are objects , not primitives. For example, you can do this: irb(main):008:0> 4.4765.round => 4 Even nil is a class, standing for nothing: irb(main):009:0> nil.class...
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O''''Reilly Network For Information About''''s Book part 21 pptx

O''''Reilly Network For Information About''''s Book part 21 pptx

... always take lessons learned into account), partially due to a lack of performance tuning on the original stack, but mostly due to the fact that the performance gains with Rails are easy to achieve. ... surprised at the level of performance I was able to achieve. The Rails version of the app was fast, and faster even than the original Java version. That's partially due to a better understanding ... Some Numbers I'm going to give you some performance and productivity numbers based on experience. I recognize the numbers are imperfect, for a whole lot of reasons. In some ways, the deck...
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O''''Reilly Network For Information About''''s Book part 26 pptx

O''''Reilly Network For Information About''''s Book part 26 pptx

... approach often makes it much easier to design and refactor complex web screens. For example, here's the rendering for the shopping cart: html divNamed: 'cart' with: [ html small: ... block, so links don't get out of sync. The framework manages them for you.  Seaside is modal. This is the author's word for a continuation server approach. Seaside lets you express one ... environments. I used the Squeak IDE for examples in this chapter. Squeak is a dialect of Smalltalk popularized by Disney. 8.4.1. A Little Smalltalk Syntax Before we get too far, you should know...
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O''''Reilly Network For Information About''''s Book part 41 ppt

O''''Reilly Network For Information About''''s Book part 41 ppt

... responsible for making sure that the reference count is always correct and, if the reference counter drops to zero, to delete the pointer. Therefore, you must overload those functions for your ... Often, it makes sense to parameterize these functions, and simply forward to member functions of the managed type to do the work (for example, calling add_ref and release). If the reference counter ... smart pointer must be exactly the size of a raw pointer, or when performance is hurt by the allocation of the reference count for shared_ptr (a rare case, I'm sure!). The only case where...
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