Object Oriented Software Design

Download An Introduction to Design Patterns in C++ with Qt 4 by Alan Ezust PDF

By Alan Ezust

Study C++, styles, and Qt four Cross-Platform DevelopmentMaster C++ and layout styles jointly, utilizing the world's major open resource framework for cross-platform improvement: Qt 4.An advent to layout styles in C++ with Qt four is a whole educational and reference that assumes no prior wisdom of C, C++, items, or styles. you are going to stroll via each center idea, one step at a time, studying via an in depth number of Qt 4.1-tested examples and exercises.By the time you are performed, you can be growing multithreaded GUI functions that entry databases and control XML records - purposes that run on structures together with home windows, Linux, Unix, and Mac OS X. better of all, you can be writing code that is effective, reusable, and elegant.Learn gadgets speedy: sessions, inheritance, polymorphism, and moreMaster strong layout patternsDiscover effective high-level programming recommendations utilizing libraries, generics, and containersBuild graphical functions utilizing Qt widgets, versions, and viewsLearn complicated thoughts starting from multithreading to reflective programmingUse Qt's integrated periods for having access to MySQL dataIncludes a whole C++ language reference

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C-style comment delimiters for multiline comments can also be used: The text between /* and */ is a comment. 1). As in C, all preprocessor directives begin with the pound sign character, #, and are evaluated just before the compiler compiles your code. In this example, the included header contains the Standard Library definitions for input/output. The Using Namespace Directive Symbols from the Standard Library (see Appendix B) are all enclosed in the namespace std. 4) is a collection of classes, functions, and objects that can be addressed with a name prefix.

Struct Fraction { int numer, denom; string description; }; [ . . ] 58 Part I: Introduction to C++ and Qt 4 Part I: Introduction to C++ and Qt 4 59 A structured piece of memory is comprised of smaller chunks of memory of various types and sizes, each chunk accessible by name. 1 shows the definition of a struct. 2 shows how we can use a structured chunk of memory (containing subobjects) as a single entity. Each data member (numer, denom, description) is accessible by name. 2. cpp [ . . denom << endl; cout << " =?

56 Part I: Introduction to C++ and Qt 4 Part I: Introduction to C++ and Qt 4 57 Review Questions 1. What is a stream? What kinds of streams are there? 2. Give one reason to use an ostrstream. 3. What is the main difference between getline and the >> operator? 4. What is the type of each expression? a. 14 b. 'D' c. "d" d. 6 e. 2f f. "something stringey" g. false 5. 23. cpp #include int main() { using namespace std; int i = 5; int j=6; int *p = &i; int& r=i; int& rpr=(*p); i = 10; p = &j; rpr = 7; r = 8; cout << "i=" << i << " j=" << j << endl; <-- 1 <-- 2 <-- 3 <-- 4 <-- 5 } (1)*p: ______ (2)*p: ________ (3)*p: ________ (4)rpr: ________ Part I: Introduction to C++ and Qt 4 57 58 Part I: Introduction to C++ and Qt 4 (5)i: ________ j: ________ 6.

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