Читать книгу OCP Oracle Certified Professional Java SE 17 Developer Study Guide - Jeanne Boyarsky - Страница 192

Unlike a regular switch statement, a switch expression can be used with the assignment operator and requires a semicolon when doing so. Furthermore, semicolons are required for case expressions but cannot be used with case blocks.

var name = switch(fish) { case 1 -> "Goldfish" // DOES NOT COMPILE (missing semicolon) case 2 -> {yield "Trout";}; // DOES NOT COMPILE (extra semicolon) … } // DOES NOT COMPILE (missing semicolon)

A bit confusing, right? It's just one of those things you have to train yourself to spot on the exam.