Search results
Results from the WOW.Com Content Network
Pseudocode resembles skeleton programs, which can be compiled without errors. Flowcharts, drakon-charts and Unified Modelling Language (UML) charts can be thought of as a graphical alternative to pseudocode, but need more space on paper. Languages such as bridge the gap between pseudocode and code written in programming languages.
In the following example pseudocode, the function ReadThermometer returns a particular value even though ultimately it is supposed to read a value from a hardware source. It returns a valid value, allowing consuming code to be runnable. The function ignores the input parameter source which is common for a stub.
To convert, the program reads each symbol in order and does something based on that symbol. The result for the above examples would be (in reverse Polish notation) "3 4 +" and "3 4 2 1 − × +", respectively. The shunting yard algorithm will correctly parse all valid infix expressions, but does not reject all invalid expressions.
This is a pseudocode implementation of an optimal fixed-memory flood-fill algorithm written in structured English: The variables. cur, mark, and mark2 each hold either pixel coordinates or a null value NOTE: when mark is set to null, do not erase its previous coordinate value. Keep those coordinates available to be recalled if necessary.
A simple pseudocode implementation of the smoker who has the supply of tobacco might look like the following: def tobacco_smoker (): repeat : paper . wait () matches . wait () smoke () tobacco_smoker_done . signal ()
The if–then or if–then–else construction is used in many programming languages. Although the syntax varies from language to language, the basic structure (in pseudocode form) looks like this: If (Boolean condition) Then (consequent) Else (alternative) End If. For example: If stock=0 Then message= order new stock Else message= there is ...
Skeleton programming mimics this, but differs in the way that it is commonly written in an integrated development environment, or text editors. This assists the further development of the program after the initial design stage. Skeleton programs also allow for simplistic functions to operate, if run.
In object-oriented programming, the factory method pattern is a design pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact classes. Rather than by calling a constructor , this is accomplished by invoking a factory method to create an object.