6886327
Description
Flashcards by Rob Newman, updated more than 1 year ago
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Created by Rob Newman
about 8 years ago
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| Question | Answer |
| What does a compiler do? | A compiler takes the source code you can read and write, and transforms it into a different format. Like object files. |
| What happens to object files after they are compiled? | They are linked together to make an executable file. |
| The three times that are important at the lifetime of a C++ program are? | Compile time, link time and run time. |
| What is the shortcut key to view an error in visual studio docs? | F1 |
| To put characters on the screen for the user to read you use Stream I/O. Explain Stream I/O? | I/O stands for Input/Output. It can read input from the keyboard and write input to the screen Or it can read from files or write to files. |
| C++ supports stream with I/O operators What are 2 operators and what do they do? | >> Sends something to a stream << reads something from a stream |
| What is #include? | #include will include a file into your application #include <iostream> It opens up a world of libraries and capabilities. (for libraries you need to also link-in the library) |
| Variables in C++ hold information. A variable can only hold 1 particular type of information. Variable can be user defined. Give 5 examples of variables. | String, Integer, Date Employee, Job title, |
| True of false. Variables must be declared before they are used? | True |
| What are namespaces and what are they used for? | Namespaces are used for preventing name conflicts, so you may have two classes with the same name in different namespaces. Namespaces are used to organize code into logical groups and to prevent name collisions that can occur especially when your code base includes multiple libraries. |
| Declare a variable, initialize the variable then print out the variable. | int i; i = 3; cout << i << endl; |
| Declare a float, initialize the float then print out the float | float i; i = 4.3f; cout << i << endl; |
| What is a function? | A function is a bit of code you want to use repeatedly. You give it a name so that it can be called. |
| Write out a basic function? | Int add (int x, int y) { Return x+ y. } |
| Now call the function? | Int a = add(3,4); |
| What is overloading? | Having two functions with the same name but different parameters |
| Describe a c++ function? | A function is a group of statements that together perform a task. Every C++ program has at least one function, which is main() |
| What will this function return? | 8 |
| The first result is 5 The second result is 5 The third result is 2 The fourth result is 6 |
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