Java在每种情况下使用值范围为的switch语句？

Java没有这种东西。为什么不执行以下操作？

public static boolean isBetween(int x, int lower, int upper) {  return lower <= x && x <= upper;}if (isBetween(num, 1, 5)) {  System.out.println("testing case 1 to 5");} else if (isBetween(num, 6, 10)) {  System.out.println("testing case 6 to 10");}