CppHTP5e_05.pdf

1 5 Control Statements: Part 2  2006 Pearson Education, Inc. All rights reserved.  2 OBJECTIVES In this chapter you will learn:...

1 5 Control Statements: Part 2  2006 Pearson Education, Inc. All rights reserved.  2 OBJECTIVES In this chapter you will learn:  The essentials of counter-controlled repetition.  To use the for and do…while repetition statements to execute statements in a program repeatedly.  To understand multiple selection using the switch selection statement.  To use the break and continue program control statements to alter the flow of control.  To use the logical operators to form complex conditional expressions in control statements.  To avoid the consequences of confusing the equality and assignment operators.  2006 Pearson Education, Inc. All rights reserved.  3 5.1 Introduction 5.2 Essentials of Counter-Controlled Repetition 5.3 for Repetition Statement 5.4 Examples Using the for Statement 5.5 do…while Repetition Statement 5.6 switch Multiple-Selection Statement 5.7 break and continue Statements 5.8 Logical Operators 5.9 Confusing Equality (==) and Assignment (=) Operators 5.10 Structured Programming Summary 5.11 Problem Solving 5.12 Wrap-Up  2006 Pearson Education, Inc. All rights reserved.  4 5.1 Introduction Continue structured programming discussion – Introduce C++’s remaining control structures for, do…while, switch  2006 Pearson Education, Inc. All rights reserved.  5 5.2 Essentials of Counter-Controlled Repetition Counter-controlled repetition requires: – Name of a control variable (loop counter) – Initial value of the control variable – Loop-continuation condition that tests for the final value of the control variable – Increment/decrement of control variable at each iteration  2006 Pearson Education, Inc. All rights reserved. 1 // Fig. 5.1: fig05_01.cpp 6 2 // Counter-controlled repetition. Outline 3 #include 4 using std::cout; 5 using std::endl; Control-variable name is counter 6 fig05_01.cpp with variable initial value 1 7 int main() 8 { (1 of 1) 9 int counter = 1; // declare and initialize control variable 10 Condition tests for 11 while ( counter