Lesson 11 - Activity 4 - What are ternary operators?

🙋 Questions
1

Time: 15 minutes

Purpose: This activity helps you get familiar with terniary operators

Introduction: You’ve created if statements and switches, look at terniary operators

Task: A terniary operator allows you to create a whole if/else command on a single line.

They are not extensively used, but you might come across them. Read up on them.

Have a go at turning a previous piece of logic into a terniary operator.

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public static Boolean eligibleByCountryTernaryOperator (String country) {

    Boolean result;
    result = (country == "NZ") ?
            Boolean.TRUE : (country == "AU") ?
            Boolean.TRUE : (country == "CA") ?
            Boolean.TRUE : (country == "UK") ?
            Boolean.TRUE : (country == "US");

    return result;
}
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:laughing:

Oh that is terrifying, but it looks like it would work!

Remember a ternary operator is there to reduce statements to be simpler. Nested ternaries like that are a bit unreadable, but I know you did that to see what you could push.

Like Dr Malcolm in Jurassic Park, remember that just because you CAN do a thing does not mean you should actually do that thing!

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