Module 6: Selection Structures

Having an if statement requires an else statement to follow.

• True

• False

• Cannot be determined

A TRUE value can also be represented in programming as

• 0

• 1

• Yes

• No

A structure used to perform decision making and then branch the program flow based on the outcome of decision making.

• Looping Structure

• Selection Structure

• Data Structure

• Building Structure

What is/ are the proper syntax of an if statement?

• if (expression)

  statement;

• if (expression) {

  statement1;

  statement2;

  }

• if (expression) { statement1; statement 2; }

• All syntax are correct.

• No syntax is correct.

The following code is evaluated:

if (1)

{

printf("Hello World");

}

What will happen when executed?

• Nothing will happen

• Syntax Error

• Display "Hello World"

• Display "Hello"

The following code is evaluated:

if (3)

{

printf("Hello World");

}

What will happen when executed?

• Nothing will happen

• Syntax Error

• Display "Hello World"

• Display "Hello"

In an if...else if...else statement, an expression is true, the rest will no longer be checked.

• True

• False

• Cannot be determined

The proper syntax of a switch is:

switch (expression)

{

case expression1:

statement1;

case expression2:

statement2;

default:

statementX;

}

• True

• False

• Cannot be determined

Execute the program:

switch (2)

{

case 1: num = 1;

case 2: num = 2;

case 3: num = 3;

default: num = 0;

}

What is the value of num?

• 0

• 1

• 2

• 3

Execute the program:

switch (2)

{

case 1: num = 1; break;

case 2: num = 2; break;

case 3: num = 3; break;

default: num = 0;

}

What is the value of num?

• 0

• 1

• 2

• 3