无Bug，Java语言编写根据出生日期判断属相和星座

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package com.newer.oop;
import java.util.InputMismatchException;
import java.util.Scanner;
/**
* author: HCQ
* date: 2018/7/26
* see: 1. 根据生日判断属相和星座 2. 年份分为闰年和平年 3. 判断月份和日期是否输入正确
*/
public class Birthday {
static int year;
private static Scanner sc;
static boolean dayPanDuan; // 判断日期输入是否正确，月份天数正确为true，错误为false
/* 根据年份判断属相 */
public static String ShuXiang(int year) {
String sx = null;
switch (year % 12) {
case 4:
sx = "鼠";
break;
case 5:
sx = "牛";
break;
case 6:
sx = "虎";
break;
case 7:
sx = "兔";
break;
case 8:
sx = "龙";
break;
case 9:
sx = "蛇";
break;
case 10:
sx = "马";
break;
case 11:
sx = "羊";
break;
case 0:
sx = "猴";
break;
case 1:
sx = "鸡";
break;
case 2:
sx = "狗";
break;
case 3:
sx = "猪";
break;
}
return sx;
}
/* 根据月份和日期判断星座 */
public static String XingZuo(int year, int month, int day) {
String xz = null;
if ((month == 3 && day >= 21 && day <= 31) || (month == 4 && day >= 1 && day <= 19)) {
xz = "白羊";
}
if ((month == 4 && day >= 20 && day <= 30) || (month == 5 && day >= 1 && day <= 20)) {
xz = "金牛";
}
if ((month == 5 && day >= 21 && day <= 31) || (month == 6 && day >= 1 && day <= 21)) {
xz = "双子";
}
if ((month == 6 && day >= 22 && day <= 30) || (month == 7 && day >= 1 && day <= 22)) {
xz = "巨蟹";
}
if ((month == 7 && day >= 23 && day <= 31) || (month == 8 && day >= 1 && day <= 22)) {
xz = "狮子";
}
if ((month == 8 && day >= 23 && day <= 31) || (month == 9 && day >= 1 && day <= 22)) {
xz = "处女";
}
if ((month == 9 && day >= 23 && day <= 30) || (month == 10 && day >= 1 && day <= 23)) {
xz = "天秤";
}
if ((month == 10 && day >= 24 && day <= 31) || (month == 11 && day >= 1 && day <= 22)) {
xz = "天蝎";
}
if ((month == 11 && day >= 23 && day <= 30) || (month == 12 && day >= 1 && day <= 21)) {
xz = "射手";
}
if ((month == 12 && day >= 22 && day <= 31) || (month == 1 && day >= 1 && day <= 19)) {
xz = "摩羯";
}
if ((month == 1 && day >= 20 && day <= 31) || (month == 2 && day >= 1 && day <= 18)) {
xz = "水瓶";
}
if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) { // 闰年2月29天
if ((month == 2 && day >= 19 && day <= 29) || (month == 3 && day >= 1 && day <= 20)) {
xz = "双鱼";
}
} else { // 平年2月28天
if ((month == 2 && day >= 19 && day <= 28) || (month == 3 && day >= 1 && day <= 20)) {
xz = "双鱼";
}
}
return xz;
}
/* 判断日期是否输入正确 */
public static void PanDuanday(int year, int month, int day) {
switch (month) {
case 1:
if (day >= 1 && day <= 31) { // 日期在该月份中，dayPanDuan为ture
dayPanDuan = true;
break;
} else { // 日期在该月份中，dayPanDuan为false
dayPanDuan = false;
break;
}
case 2:
if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) {
if (day >= 1 && day <= 29) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
} else {
if (day >= 1 && day <= 28) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
}
case 3:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 4:
if (day >= 1 && day <= 30) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 5:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 6:
if (day >= 1 && day <= 30) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 7:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 8:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 9:
if (day >= 1 && day <= 30) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 10:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 11:
if (day >= 1 && day <= 30) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
case 12:
if (day >= 1 && day <= 31) {
dayPanDuan = true;
break;
} else {
dayPanDuan = false;
break;
}
}
}
/* main方法 */
public static void main(String[] args) {
sc = new Scanner(System.in);
System.out.println("请输入");
System.out.print("年: ");
try {
year = sc.nextInt(); // 输入年份
System.out.print("月: ");
int month = sc.nextInt(); // 输入月份
if (month >= 1 && month <= 12) { // 判断月份是否输入正确，是否在1-12中
System.out.print("日: ");
int day = sc.nextInt(); // 输入日期
PanDuanday(year, month, day); // 调用判断日期的方法
if (dayPanDuan == true) { // 日期在该月份中，为ture
System.out.println(year + "/" + month + "/" + day + " " + "属相: " + ShuXiang(year) + ", " + "星座: "
+ XingZuo(year, month, day)); // 输出打印年月日，属相和星座
} else { // 日期不在该月份中，为false
System.out.println("输入日期有误。");
}
} else { // 月份不在1-12中
System.out.println("输入月份有误。");
}
} catch (InputMismatchException e) {
System.out.println("输入非法。");
} catch(Exception e) {
System.out.println("其他错误。");
e.printStackTrace();
} finally {
System.out.println("程序结束！");
System.exit(0);
//退出系统
}
}
}