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January 19, 2023 21:51
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import java.util.*; // to use Scanner | |
public class Birthday { | |
public static void main(String args[]) { | |
Scanner console = new Scanner(System.in); //"spawning" in the scanner | |
intro(); | |
System.out.println("Please enter today's date:"); | |
System.out.println("What is the month (1-12)?"); | |
int userInputTodayMonth = console.nextInt(); //prompting the user first time | |
whichMonth(userInputTodayMonth); | |
int userInputTodayDay= console.nextInt(); //prompting the user second time | |
int todayDate = getDayOfYear(userInputTodayMonth, userInputTodayDay); //getting the final day for easier use later | |
System.out.println(userInputTodayMonth + "/" + userInputTodayDay + " is day #" + todayDate + " of 365."); //putting it in through the method, and making it do the calculations !! | |
System.out.println(); | |
System.out.println("Please enter your birthday:"); | |
System.out.println("What is the month (1-12)?"); | |
int userInputBdayMonth = console.nextInt(); //prompting the user third time | |
whichMonth(userInputBdayMonth); | |
int userInputBdayDay= console.nextInt(); //prompting the user fourth time | |
int bdayDate = getDayOfYear(userInputBdayMonth, userInputBdayDay); //getting the final day AGAIN | |
System.out.println(userInputBdayMonth + "/" + userInputBdayDay + " is day #" + bdayDate + " of 365."); | |
System.out.println(); | |
int result = bdayDate - todayDate; //getting the final day count... | |
wrapAround(result); //..and putting it into the "wrap around year" checker | |
System.out.println("Your next birthday is in " + result + " days."); //yay ((: | |
System.out.println(); | |
funFact(); //my birthday is 11/15! | |
} | |
//the intro text | |
public static void intro() { | |
System.out.print("This program tells you how many days"); | |
System.out.print("it will be until your next birthday."); | |
System.out.println(); | |
} | |
//calculates whether the day "wraps around", or if the birthday happens the proceeding year | |
public static int wrapAround(int dayDiff) { | |
if (dayDiff < 0) { //if statement to account for the next year beeswax | |
dayDiff += 365; // for example, if bdayDate is 20 and today date is 120, result will be a negative integer. So, adding 365 will quite literally, even it out so that the final result will be accurate! | |
} | |
return dayDiff; | |
} | |
//program that puts out the appropiate question for days- wether a month has 31 days, 30 days, or 28 days! | |
public static int whichMonth(int month) { | |
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) { // using || because it means or and i dont have to use too many if statements this way | |
System.out.println("What is the day (1-31)?"); | |
} else if (month == 4 || month == 6 || month == 9 || month == 11) { | |
System.out.println("What is the day (1-30)?"); | |
} else if (month == 2) { | |
System.out.println("What is the day (1-28)?"); | |
} | |
return month; | |
} | |
//program to get the day of the year, since it's in two major parts of the program | |
public static int getDayOfYear(int month, int day) { //month and day will be used for if/else statements wooooo | |
int[] allMonths = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; //array with all month's days! (0 is there for easy calculations) | |
int cumSum = 0; | |
for (int i = 0; i < month; i++) { //making a loop to calculate the cumulative sum (cumSum plz it's not erotic) | |
cumSum += allMonths[i]; | |
} | |
int cumDate = cumSum + day; | |
return cumDate; | |
} | |
//prints the fun fact! | |
public static void funFact() { | |
System.out.println("Did you know? On 11/15/2001, Microsoft released the first-ever XBox, "); | |
System.out.println("selling 1.5 million units before the end of 2001. Talk about a game changer!"); | |
} | |
} |
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