Java trouver le nombre de jours avant votre anniversaire

Question

Java trouver le nombre de jours avant votre anniversaire

Voici une calculatrice pour trouver combien de jours de plus votre anniversaire est en, mais lorsque vous entrez un jour qui est avant la date d'aujourd'hui, alors la calculatrice ne vous donnera pas la bonne réponse. Je ne peux pas utiliser d'importation.calendrier, alors comment pourrais-je résoudre le problème de sorte que si l'anniversaire était avant la date entrée cela me donnerait le bon nombre de jours?

import java.util.Scanner;

public class Birthdays {
public static void main(String[] args) {

    Scanner newscanner = new Scanner(System.in);
    System.out.print("Please enter today's date (month day): ");
    int z = newscanner.nextInt();
    int y = newscanner.nextInt();
    System.out.println("Today is " + z + "/" + y + "/2016, day #" + absoluteDay(z, y) + " of the year");
    System.out.println();

    System.out.print("Please enter person #1's birthday (month day): ");
    int j = newscanner.nextInt();
    int k = newscanner.nextInt();
    System.out.println(j + "/" + k + "/2016. Your next birthday is in "
            + (Math.abs(absoluteDay(z, y) - absoluteDaytwo(j, k))) + " day(s)");
    System.out.println();

    System.out.print("Please enter person #2's birthday (month day): ");
    int q = newscanner.nextInt();
    int w = newscanner.nextInt();
    System.out.println(q + "/" + w + "/2016. Your next birthday is in "
            + (Math.abs(absoluteDay(z, y) - absoluteDaythree(q, w))) + " day(s)");

    if (j + k > q + w) {
        System.out.print("Person #1's birthday is sooner.");
    } else {
        System.out.print("Person #2's birthday is sooner.");
    }
}

public static int absoluteDay(int z, int y) {
    if (z == 1)
        return y;
    if (z == 2)
        return y + 31;
    if (z == 3)
        return y + 60;
    if (z == 4)
        return y + 91;
    if (z == 5)
        return y + 121;
    if (z == 6)
        return y + 152;
    if (z == 7)
        return y + 182;
    if (z == 8)
        return y + 213;
    if (z == 9)
        return y + 244;
    if (z == 10)
        return y + 274;
    if (z == 11)
        return y + 305;
    if (z == 12)
        return y + 335;
    else
        return 0;
}

public static int absoluteDaytwo(int q, int w) {
    if (q == 1)
        return w;
    if (q == 2)
        return w + 31;
    if (q == 3)
        return w + 60;
    if (q == 4)
        return w + 91;
    if (q == 5)
        return w + 121;
    if (q == 6)
        return w + 152;
    if (q == 7)
        return w + 182;
    if (q == 8)
        return w + 213;
    if (q == 9)
        return w + 244;
    if (q == 10)
        return w + 274;
    if (q == 11)
        return w + 305;
    if (q == 12)
        return w + 335;
    else
        return 0;
}

public static int absoluteDaythree(int j, int k) {
    if (j == 1)
        return k;
    if (j == 2)
        return k + 31;
    if (j == 3)
        return k + 60;
    if (j == 4)
        return k + 91;
    if (j == 5)
        return k + 121;
    if (j == 6)
        return k + 152;
    if (j == 7)
        return k + 182;
    if (j == 8)
        return k + 213;
    if (j == 9)
        return k + 244;
    if (j == 10)
        return k + 274;
    if (j == 11)
        return k + 305;
    if (j == 12)
        return k + 335;
    else
        return 0;
}

}

1

French java calculator

Author: Jamie, 2015-10-23

Source

1 answers

score 0 · Accepted Answer

Le point clé est très simple,

if (today > birthday) then nextBirthday = 365 - (today-birthday)

Voici le code complet:

/**
 * Created by chenzhongpu on 23/10/2015.
 */
import java.util.Scanner;

public class Birthdays {
    private static int DAYS_YEAR = 365;
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.print("Please enter today's date (month day): ");
        int z = scanner.nextInt();
        int y = scanner.nextInt();
        int currentDays = absoluteDay(z, y);
        System.out.println("Today is " + z + "/" + y + "/2016, day #" + currentDays + " of the year");

        System.out.print("Please enter person #1's birthday (month day): ");
        int j = scanner.nextInt();
        int k = scanner.nextInt();
        int birthDayDays1 = absoluteDay(j, k);
        int nextBirthdays1 =
                birthDayDays1-currentDays >= 0 ? birthDayDays1-currentDays: DAYS_YEAR - (currentDays-birthDayDays1);
        System.out.println(j + "/" + k + "/2016. Your next birthday is in "
                + nextBirthdays1 + " day(s)");

        System.out.print("Please enter person #2's birthday (month day): ");
        int q = scanner.nextInt();
        int w = scanner.nextInt();
        int birthDayDays2 = absoluteDay(q, w);
        int nextBirthdays2 =
                birthDayDays2-currentDays >= 0 ? birthDayDays2-currentDays: DAYS_YEAR - (currentDays-birthDayDays2);
        System.out.println(q + "/" + w + "/2016. Your next birthday is in "
                + nextBirthdays2 + " day(s)");

        if(nextBirthdays1 > nextBirthdays2){
            System.out.println("#2 is sooner");
        }else if(nextBirthdays1 < nextBirthdays2){
            System.out.println("#1 is sooner");
        }else{
            System.out.println("equal");
        }

    }

    private static int absoluteDay(int month, int day){
        int[] days = {0, 0, 31, 60, 91, 121, 91, 121, 152, 182,
        213, 244, 274, 305, 335};
        return days[month] + day;
    }
}