IF & CASE Conditional Statements

What is the syntax of an IF statement in computer science?

• if (condition) { // code block to execute if condition is true }

• if (condition) { // code block to execute if condition is false }

• if (condition) then { // code block to execute if condition is true }

• if [condition] then { // code block to execute if condition is true }

How is a CASE statement structured in computer science?

• CASE expression WHEN condition1 THEN action1 WHEN condition2 THEN action2 ELSE default_action END CASE

• CASE expression WHEN condition1 THEN action1 WHEN condition2 THEN action2 ELSE default_action

• CASE expression WHEN condition1 THEN action1 ELSE default_action END CASE

• CASE condition1 THEN action1 WHEN condition2 THEN action2 ELSE default_action END CASE

What are nested IF statements in computer science?

• Nested IF statements are a way to include an IF statement inside another IF statement.

• Nested IF statements are a way to combine multiple ELSE statements in computer science.

• Nested IF statements are used for loop iterations in computer science.

• Nested IF statements are only used in object-oriented programming.

Explain the concept of IF-ELSE statements.

• IF-ELSE statements can only have one condition.

• IF-ELSE statements are only applicable in web development.

• IF-ELSE statements are used for mathematical calculations only.

• IF-ELSE statements provide a way to create branching logic in programs by evaluating conditions and executing different code paths accordingly.

What is the purpose of IF...THEN...ELSE...ENDIF statements?

• To skip code execution

• To conditionally execute code based on a specified condition.

• To repeat code multiple times

• To define variables

When should you use an IF statement in programming?

• When you want to execute a block of code regardless of any condition.

• When you want to execute a block of code randomly.

• When you want to execute a block of code only if a certain condition is true.

• When you want to execute a block of code only if a certain condition is false.

Can a CASE statement be used instead of multiple IF statements?

• Yes

• Sometimes

• No

• Rarely

What happens if the condition in an IF statement is false?

• The program will terminate immediately.

• The code block inside the IF statement will be executed twice.

• The code block inside the IF statement will not be executed.

• The condition will be ignored.

How do you handle multiple conditions in an IF statement?

• Handle multiple conditions by using semicolons in the IF statement.

• Handle multiple conditions by using plus signs in the IF statement.

• Handle multiple conditions by using commas in the IF statement.

• Handle multiple conditions by using logical operators like AND (&&) and OR (||) in the IF statement.

Give an example of a scenario where you would use a nested IF statement.

• If(score >= 90) { if(extraCredit <= 0) { grade = 'A+'; } else { grade = 'A'; } }

• If(score >= 90) { if(extraCredit > 0) { grade = 'A+'; } else { grade = 'A'; } }

• If(score >= 90) { if(extraCredit > 0) { grade = 'B+'; } else { grade = 'B'; } }

• If(score < 50) { if(extraCredit > 0) { grade = 'D+'; } else { grade = 'D'; } }