This short note is for those who already know C++ and want to refresh their memory. Starters can still take a look to get an overall idea.
- Three pillars of object-oriented development: encapsulation, inheritance, and polymorphism.
- C++ supports encapsulation through (user-defined) classes. Class properties and internal workings can be hidden from outside world.
- C++ supports polymorphism through overloading, overriding
- C++ supports inheritance by allowing classes to share (extend) the properties and workings of other classes
- Managed C++ is an extension of the C++ language. Managed C++ allows the use of Microsoft’s new platform (.Net) and libraries
- How to include header files: #include <iostream> or #include <iostream.h>
- Print in the console: std::cout <<“Hello World!n”; or cout <<“Hello World!n”; std::cout << “Number and String together:t” << 70000;
- Read from the console: std::cin >> response; where response is a variable
- If you do not want to use ‘std::’ in the previous examples, you can use the statement ‘using namespace std;’ before
- How to comment: use // to comment single line or use /*c++ code*/ to comment a block
- [ Code commenting is a good practice only when you describe why is the code block than what the block does.]
- C++ is case sensitive
- Keywords, Reserved words: Some words are reserved in C++. You can not use them as variable names.
- Keywords:
asm else new this auto enum operator throw bool explicit private true break export protected try case extern public typedef catch false register typeid char float reinterpret_cast typename class for return union const friend short unsigned const_cast goto signed using continue if sizeof virtual default inline static void delete int static_cast volatile do long struct wchar_t double mutable switch while dynamic_cast namespace template
- Reserved words: And bitor not_eq xor and_eq compl or xor_eq bitand not or_eq
- Variable declaration: unsigned int age;
- How to create aliases: typedef unsigned short int USHORT;
- C++ Escape characters:
a Bell (alert)
b Backspace
f Form feed
n New line
r Carriage return
t Tab
v Vertical tab
‘ Single quote
” Double quote
? Question mark
\ Backslash
00 Octal notation
xhhh Hexadecimal notation
- Define constants:
#define numberOfContinents 7
- Enumerated constants:
enum WeekDays { Monday, Tuesday, Wednesday, Thursday, Friday};
WeekDays day;
From: http://sitestree.com/?p=3521
Categories:Programming, C++
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Post Data:2016-07-07 16:02:16
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