Chapter 4, Problem 1RQE

Describe the difference between the if /else if statement and a series of if statements.

Program Plan Intro

“if/else”if statement:

• “if/else” ifis a conditional statement that controls the condition branching.
• It executes the statements after evaluating the conditional expression.
• The “if” statement evaluates the test expression and when it is evaluated as true, the statement inside the body of “if” statement is executed.
• If the test expression is evaluated as false, it moves to the next if/else statement and the process continues till it reaches the finalif/else statement.
• If the test expression is evaluated as false, the statements in the “else” is executed.

Syntax:

//if conditional statement

if(condition)

{

Statement1

}

//if condition statement2

else if(condition)

{

Statement2

}

//else part

else

{

Statement3

}

Series of “if” statement:

A condition statement that controls the condition branching. The “if” statement evaluates the test expression and when it is evaluatedas true, the statement inside the body of “if” statement gets executed.

Syntax:

// if conditional statement1

if(condition)

{

Statement1

}

// if conditional statement2

if(condition)

{

Statement2

}

Explanation of Solution

Difference between if/else if statement and a series of if statement:

if/else if statement	if statement
The condition gets tested until one conditional block is found to be true.	The conditions get validated for each of the condition cases given in a series.
The conditions are being evaluated to true to execute the statement. On evaluating true, the statement gets execute and exits the controls.	Each series of condition needs to be evaluated for the execution of series of statement present. The control gets validated for each condition and based the valuation of condition; the control exits the condition.