P3 Explain sequence, selection and iteration as used in computer programming
P4 Outline the benefits of having a variety of data types available to the programmer
Task 2
Include in your report an explanation on sequence, selection and iteration as used in computer programming. Use examples from ...
unit 6 1 know the features of programming languages
selection and iteration as used in comput
Escuela, estudio y materia
BTEC
Pearson (PEARSON)
Information Technology 2010 QCF
Unit 6 - Software Design and Development
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| 11/3/2016
Features of programming languages and event
driven languages
Contents
Task 1: Event driven programming ............................................................................................................. 2
Service oriented ....................................................................................................................................... 2
Time driven triggers ................................................................................................................................. 2
Event handlers ......................................................................................................................................... 2
Trigger functions ...................................................................................................................................... 2
Events e.g. load, click .............................................................................................................................. 2
Event loops ............................................................................................................................................... 2
Flexibility for GUI, forms........................................................................................................................... 2
Simplicity of programming ...................................................................................................................... 3
Ease of development ............................................................................................................................... 3
Task 2 ........................................................................................................................................................... 3
Variables and their scope........................................................................................................................ 3
Local ..................................................................................................................................................... 3
Public/global ........................................................................................................................................ 3
Naming conventions ................................................................................................................................ 3
The use of logical operators .................................................................................................................... 4
Assignment statements........................................................................................................................... 4
Input and output statements .................................................................................................................. 4
Sequence, Selection and Iteration ......................................................................................................... 4
Sequence ............................................................................................................................................. 4
Selection ............................................................................................................................................... 4
Task 3 ........................................................................................................................................................... 4
Data types ................................................................................................................................................ 4
String .................................................................................................................................................... 5
Bytes ..................................................................................................................................................... 5
Decimal................................................................................................................................................. 5
Integer .................................................................................................................................................. 5
Boolean ................................................................................................................................................ 5
Long ...................................................................................................................................................... 6
Task 4 ........................................................................................................................................................... 6
Task 5 ........................................................................................................................................................... 7
1
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