Controlling Program Flow →easyMultiple ChoiceObjective-mapped

1Z0-829 Controlling Program Flow Practice Question

Which of the following correctly uses a switch expression with multiple constants per case?

```java

int day = 2;

String result = switch (day) { case 1, 2, 3 -> "Weekday"; case 6, 7 -> "Weekend"; default -> "Invalid";

};

```

What is the value of result?

⚠ Common exam trap

Oracle often tests whether candidates know that multiple constants per case are allowed in modern Java (since Java 14), and the trap here is that some candidates mistakenly believe this syntax is invalid or that the default branch would be selected for a value that matches an explicit case.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Weekday

The switch expression correctly uses multiple constants per case with the arrow syntax. Since day is 2, it matches case 1, 2, 3, so the expression evaluates to "Weekday". The switch expression is exhaustive (covers all possible int values via the default branch), so it compiles and runs without error.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
The code does not compile because multiple constants are not allowed.
Why it's wrong here
Multiple constants per case are allowed in Java 14+.
✓
Weekday
Why this is correct
Correct match.
✗
Invalid
Why it's wrong here
Default only runs if no match.
✗
Weekend
Why it's wrong here
Weekend is for days 6 and 7.

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1Z0-829 Controlling Program Flow Practice Question

Why each option matters

Option-by-option breakdown

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