Constants.java

package calendar;

public class Constants {
    public final static String DAY = "day";
    public final static String IS_OUT_OF_RANGE = "is out of range!";
    public final static String NOT_IMPLEMENTED_YET = "not implemented yet!";
    public final static String MONTH = "month";
    public final static String YEAR_0_IS_INVALID = "Year 0 is invalid!";
}