Control Structures Introduction

Structured programming requires only three forms of control:

• Sequence
• Selection
• Iteration

Sequence

Sequence is implemented when one statement follows another, in order.

Selection

Selection is implemented in one of three ways:

• if structure
• if/else structure
• switch structure

Repetition

Repetition (iteration) is implemented in one of three ways:

• while structure
• do/while structure
• for structure