Presentation on Decision making and Branching

Presentation on

Decision making and Branching

Introduction

C language possesses such decision making capabilities by supporting the following statements:

• if statement

• switch statement

• Conditional operator statement

• goto statement

The conditional branching statements help to jump from one part of the program to another

depending on whether a particular condition is satisfied or not.

These statements are known as decision-making statements.

if Statement

The if statement is a powerful decision-making statement

and is used to control the flow of execution of

statements. It takes the following form:

if (test expression)

It allows the computer to evaluate the expression first

and then, depending on whether the value of the

expression ( relation or condition) is ‘true’ (non-zero) or

‘false’ (zero), it transfers the control to a particular

statement.

Flowchart:

Test

Expression

Entry

Fal

c programming