Arrays with descriptions of days of month , days of week and hours of day

NumbersNames

public class NumbersNames{
	private static final String[] tensNames = { "", " ten", " twenty",
		" thirty", " forty", " fifty", " sixty", " seventy", " eighty",
	" ninety" };
	private static final String[] numNames = { "zero", " one", " two",
		" three", " four", " five", " six", " seven", " eight", " nine",
		" ten", " eleven", " twelve", " thirteen", " fourteen", " fifteen",
		" sixteen", " seventeen", " eighteen", " nineteen" };
	
	private static String[] daysOfWeek = { "", "Sunday", "Monday", "Tuesday",
		"Wednesday", "Thursday", "Friday", "Saturday" };
	public static void printHoursOfDay() {
		for (int i = 0; i < 24; i++) {
			int ten = Math.round(i / 10);
			String name = (ten > 01 ? (tensNames[ten].toUpperCase() + "_") : "")
					+ numNames[i % 20].toUpperCase().trim();
			System.out.println(String
					.format("case %d : return %s; \n", i, name));
		}
	}

	public static void printDaysOfMonth() {
		for (int i = 1; i < 32; i++) {
			int ten = Math.round(i / 10);
			String name = (ten > 01 ? (tensNames[ten].toUpperCase() + "_") : "")
					+ numNames[i % 20].toUpperCase().trim();
			System.out.println(String.format("%s(%d),", name, i));
		}
	}

	public static void printSwitchDaysOfMonth() {
		for (int i = 1; i < 32; i++) {
			int ten = Math.round(i / 10);
			String name = (ten > 01 ? (tensNames[ten].toUpperCase() + "_") : "")
					+ numNames[i % 20].toUpperCase().trim();
			System.out.println(String.format("case %d : return %s;", i, name));
		}
	}

	public static void printDaysOfWeek() {
		for (int i = 1; i < 8; i++) {
			String name = daysOfWeek[i].toUpperCase().trim();
			System.out.println(String.format("%s(%d),", name, i));
		}
	}

	public static void printSwitchDaysOfWeek() {
		for (int i = 1; i < 8; i++) {
			String name = daysOfWeek[i].toUpperCase().trim();
			System.out.println(String.format("case %d : return %s;", i, name));
		}
	}



}