switch case with multiple conditions

1  switch (num) {
2            case 5:
3            case 2:
4            case 3:
5                System.out.println("5,2,3");
6                break;
7            case 4:
8            case 6:
9                System.out.println("4,6");
10                break;
11            case 1:
12                System.out.println("1");
13                break;
14            default:
15                System.out.println("Inavlid number");
16                break;
17        }

1switch (measurement)
2{
3	case "oz":
4		{
5          qty = Math.round (qty * 28.3495);
6          qty= (int)qty;
7          measurement= "g";
8          System.out.print(qty);
9		}
10	break;
11	case "fl oz":
12        {
13          qty = Math.round (qty * 29.5735);
14          qty= (int)qty;
15          measurement= "ml";
16          System.out.print(qty);
17      	}
18    break;
19    default:
20        {
21          qty =(int)qty;
22          System.out.print(qty);
23        }
24}//end switch case