java-use switch to judge the season

Import java.util.*;
Class Demo3
{
public static void Main (string[] args)
{

Requirements: Enter a month to determine which season the month belongs to: Spring: 3,4,5
Summer: 6,7,8, Autumn: 9,10,11 Winter: 12,1,2

System.out.println ("Please enter a month:");
Scanner Input function
To import a package using scanner: java.util.*
Scanner SCA = new Scanner (system.in);
int num = Sca.nextint ();

Switch (num) {
Case 3:
Case 4:
Case 5:
System.out.println ("Spring");
Break
Case 6:
Case 7:
Case 8:
System.out.println ("Summer");
Break
Case 9:
Case 10:
Case 11:
System.out.println ("Autumn");
Break
Case 12:
Case 1:
Case 2:
System.out.println ("Winter");
Break
Default
System.out.println ("You Come to Mars");
Break
}

}
}

java-use switch to judge the season