Switch-case statements in MATLAB - Cheat Sheet & Quick Revision

Recall & Review

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What is the purpose of a switch-case statement in MATLAB?

A switch-case statement lets you choose between many options based on the value of a variable. It helps run different code blocks depending on that value.

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How do you start a switch-case statement in MATLAB?

You start with the keyword switch followed by the variable or expression you want to check.

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What keyword do you use to define each option inside a switch-case in MATLAB?

You use the keyword case followed by the value to match for that option.

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What is the role of the otherwise block in a switch-case statement?

The otherwise block runs if none of the case values match. It acts like a default option.

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How do you end a switch-case statement in MATLAB?

You end it with the keyword end.

Which keyword starts a switch-case statement in MATLAB?

A switch

B case

C if

D otherwise

The switch-case statement always starts with the keyword switch.

What happens if no case matches and there is no otherwise block?

A MATLAB runs the last case anyway

B MATLAB throws an error

C No code inside switch runs

D MATLAB runs all cases

If no case matches and no otherwise is present, none of the switch code runs.

How do you specify the value to match inside a switch-case?

A Using <code>otherwise</code>

B Using <code>case</code> followed by the value

C Using <code>switch</code> followed by the value

D Using <code>if</code>

Each option inside a switch-case uses case followed by the value to match.

What keyword ends a switch-case block in MATLAB?

A close

B stop

C finish

D end

The switch-case block ends with the keyword end.

Which block runs if none of the cases match?

A otherwise

B case default

C switch

D end

The otherwise block runs when no case matches.

Explain how a switch-case statement works in MATLAB and why it is useful.

Think about how you pick one option from many choices.

Write a simple MATLAB switch-case example that prints a message for three different colors and a default message for others.

Use disp('message') to show text.