comp sci info
CSP2104-5107: Object-Oriented
Programming in C++
Lecture 03
Making Decisions
Prof. A. Taleb-Bendiab
Room 13.213
a.taleb-bendiab@ecu.edu.au
Blackboard
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 1
Unit Review: Module 03
So far …
This Lecture
Lecture 1: Introduction to OO
Lecture 2: Evaluating C++ Expressions
Use the if and if-else statements
Use nested if statements
Avoid common pitfalls with if statements
Use the switch statement
Use the conditional operator
Use the logical AND and the logical OR
Make decisions with structure fields
Book:
Object-Oriented Programming Using C++, Fourth Edition
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 2
Using the if Statement #1
C++ supports all standard control structures:
if statement if-else statement switch statement
Conditional operators
You can combine decisions using the logical AND and OR operators
The Single-Alternative if
if: primary C++ selection structure statement used to perform a single-alternative selection
Syntax:
if (Boolean expression)
{action if true}
else { expression};
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 3
Using the if Statement #2
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 4
The Single-Alternative if #3
Note the difference between the following
Example 1:
Execute as
Example 2:
Execute as
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 5
The Dual-Alternative if
if-else structure
Syntax
if
Programming in C++
Lecture 03
Making Decisions
Prof. A. Taleb-Bendiab
Room 13.213
a.taleb-bendiab@ecu.edu.au
Blackboard
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 1
Unit Review: Module 03
So far …
This Lecture
Lecture 1: Introduction to OO
Lecture 2: Evaluating C++ Expressions
Use the if and if-else statements
Use nested if statements
Avoid common pitfalls with if statements
Use the switch statement
Use the conditional operator
Use the logical AND and the logical OR
Make decisions with structure fields
Book:
Object-Oriented Programming Using C++, Fourth Edition
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 2
Using the if Statement #1
C++ supports all standard control structures:
if statement if-else statement switch statement
Conditional operators
You can combine decisions using the logical AND and OR operators
The Single-Alternative if
if: primary C++ selection structure statement used to perform a single-alternative selection
Syntax:
if (Boolean expression)
{action if true}
else { expression};
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 3
Using the if Statement #2
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 4
The Single-Alternative if #3
Note the difference between the following
Example 1:
Execute as
Example 2:
Execute as
Prof. A. Taleb-Bendiab, Unit: Object-Oriented Programming in C++, Code: CSP2104-5107, Lecture: 03, Date: 05/03/2013, Page: 5
The Dual-Alternative if
if-else structure
Syntax
if