{"id":556,"date":"2010-01-22T10:55:32","date_gmt":"2010-01-22T10:55:32","guid":{"rendered":"http:\/\/www.codingfriends.com\/?page_id=556"},"modified":"2010-03-17T12:26:17","modified_gmt":"2010-03-17T12:26:17","slug":"lessons-on-programming","status":"publish","type":"page","link":"https:\/\/www.codingfriends.com\/index.php\/projects\/lessons-on-programming\/","title":{"rendered":"Lessons on programming"},"content":{"rendered":"

Here is going be some links to posts that I have done regarding different aspects of programming in different languages so that it brings it all together as such. For example, what is a class and how does it work etc. anyway here are some basic tutorials and links to different languages and kinder to show how they are kinder all linked :). The different headings will have different languages links underneath ;)..<\/p>\n

Introduction to<\/h2>\n

Hello world<\/h2>\n

The classic hello world program examples for some programming languages.<\/p>\n

    \n
  1. Flex – Hello world<\/a> (flash swf)<\/li>\n
  2. Javascript – Hello world<\/a><\/li>\n
  3. PHP – Hello world.<\/a><\/li>\n
  4. Ruby – hello world.<\/a><\/li>\n
  5. C++ – Hello world<\/a><\/li>\n
  6. C# – hello world.<\/a><\/li>\n
  7. Java – hello world.<\/a><\/li>\n<\/ol>\n

    Variable types<\/h2>\n
      \n
    1. Java – local variables<\/a><\/li>\n<\/ol>\n

      Casting of variables<\/h2>\n
        \n
      1. Reinterpret_cast – c++<\/a><\/li>\n
      2. const_cast – c++<\/a><\/li>\n
      3. dynamic_cast – c++<\/a><\/li>\n
      4. static_cast – c++<\/a><\/li>\n<\/ol>\n

        Flow control (loops) – while \/ for \/ foreach etc.<\/h2>\n

        Arrays<\/h2>\n
          \n
        1. Java<\/a><\/li>\n<\/ol>\n

          Methods<\/h2>\n
            \n
          1. Java – add two numbers<\/a><\/li>\n
          2. Ruby – add two numbers<\/a><\/li>\n
          3. PHP – add two numbers<\/a><\/li>\n
          4. C# – add two numbers<\/a><\/li>\n
          5. Javascript – add two numbers<\/a><\/li>\n
          6. C++ – add two numbers<\/a><\/li>\n<\/ol>\n

            Classes<\/h2>\n
              \n
            1. Java<\/a><\/li>\n<\/ol>\n

              Comparison of classes<\/h2>\n
                \n
              1. Java – Equals \/ Compare<\/a><\/li>\n
              2. C# – Equals<\/a><\/li>\n<\/ol>\n

                Delegates \/ Events<\/h2>\n
                  \n
                1. C# – Delegates<\/a><\/li>\n
                2. C# – Events<\/a><\/li>\n<\/ol>\n

                  Interfaces<\/h2>\nJava<\/a><\/li>\n<\/ol>\n

                  Overloading<\/h2>\n

                  Overloading is when you overload a methods\/functions within a class, when you overload a method you can define a function with the same function name but have either different return values and passing parameters.<\/p>\n

                    \n
                  1. C#<\/a><\/li>\n<\/ol>\n

                    Overriding<\/h2>\n

                    Overriding functions allow for derived classes to override virtual functions from the base class.<\/p>\n

                      \n
                    1. C#<\/a><\/li>\n<\/ol>\n

                      Polymorphism<\/h2>\n

                      Polymorphism allows for a base class to be inherited to create a new class that implements\/add’s new functions. Here are some examples in different languages <\/p>\n

                        \n
                      1. C++<\/a><\/li>\n
                      2. PHP<\/a><\/li>\n<\/ol>\n

                        Templates and Generics<\/h2>\n

                        Templates and Generics allow for the same class to be initialized with different data types. Here are some examples in different langauges<\/p>\n

                          \n
                        1. C++ (Templates)<\/a><\/li>\n
                        2. C# (Generics)<\/a><\/li>\n
                        3. Java (Generics)<\/a><\/li>\n<\/ol>\n

                          Constants, properties, fields, methods.<\/h2>\n

                          const in c++ ( and also within functions definitions) can be found here<\/a><\/p>\n

                          Shall add more when doing the tutorials links<\/p>\n

                          Files<\/h2>\n
                            \n
                          1. Java – read\/write<\/a>\n<\/ol>\n

                            Exercises<\/h2>\n

                            During a interview I was asked to do some “home work” coding to show my style of coding and if I was able to do the tasks.<\/p>\n

                              \n
                            1. Exercise 1. (Simple)
                              \nAccept form input for a user registration form, and store results in a MySQL table, using PHP. Applicant should demonstrate a knowledge of input validation, and using server-side code to avoid sql injection exploits. The user data should include first name, last name, email, and phone number. <\/p>\n

                              Usage of Javascript pre-validation would be a plus, as would forward planning, i.e. adding a unique code to the user details that could be used to validate their email address. Suitable MySQL table schema should be demonstrated.<\/p>\n