Pseudo-code
- Pseudo-code is a tool that can be used to express algorithms more precisely
- Pseudo-code is a combination of programming code and ordinary English
- Pseudo-code allows algorithms to be specified precisely without having to worry about programming language syntax
- There is currently no firmly established standard for Pseudo Code
- Pseudo-code is not actually executed on a computer, it simply provides a means for programmers to "Think out" their programs before they implement them
- A carefully prepared pseudo code program can be easily converted to a programming language such as C++ or Java.
- HOW TO WRITE PSEUDO CODE?
- Any algorithm will eventually need to have its instructions performed by a computer
- For this reason the keywords used in Pseudo code are based on the main functions fo a computer.
- Rules for Pseudo-code
- INPUT
- READ get input from a file
- GET get input from the keyboard
- ARITHMETIC / CALCULATIONS
- OUTPUT
- PRINT output to a printer
- WRITE output to a file
- DISPLAY output to a monitor
- STORE
- SET total_price to 0
- total_price = cost_price + tax
- COMPARE
- IF student is part time THEN ADD 1 to part time ELSE ADD 1 to full time ENDIF
- REPETITION
- DOWHILE student_total < 50 READ student_record ADD 1 to student_total ENDDO
- WHILE student_total < 50 READ student_record ADD 1 to student_total ENDWHILE
- Examples
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