Why we have to use semicolon at the end of the switch in this program

Question

public class Program
{
public static void main(String[] args) {

int day = 2;
String dayType = switch(day) {
case 1, 2, 3, 4, 5 -> "Working day";
case 6, 7 -> "Weekend";
default -> "Invalid day";
};//Here
System.out.println(dayType);
}
}

Answer 1

because switch is declared in a variable

always after a variable declaration is needed ";"

Answer 2

This is a Java switch expression, not a switch statement. Like other expressions, a value is returned once it has been evaluated. An expression is a rvalue and therefore requires a semicolon. This is similar to how an anonymous method/function vs a regular function is treated. Where the anonymous function is an rvalue and would similarly require a semicolon vs a regular function which is a class member.

https://docs.oracle.com/en/java/javase/13/language/switch-expressions.html

Answer 3

because it defines the end of a statement.

https://www.sololearn.com/discuss/1413209/?ref=app