Language Upgrades · interview question

Which of the following is a correct use of a switch expression in Java?

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Int result = switch (value) { case 1: 10; case 2: 20; default: 0; };Int result = switch (value) { case 1 => 10; case 2 => 20; default => 0; };Int result = switch (value) { case 1 -> return 10; case 2 -> return 20; default -> return 0; };Int result = switch (value) { case 1 -> 10; case 2 -> 20; default -> 0; };

Answer and explanation

Correct answer

D. Int result = switch (value) { case 1 -> 10; case 2 -> 20; default -> 0; };

Why

The correct syntax for a switch expression uses '->' to define the result for each case, making it more concise and easier to read compared to the traditional switch statement.

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Which of the following is a correct use of a switch expression in Java?

Correct answer

Why

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