java基础题、关于输入月日来判断星座的、求教

Question

我这个判断星座的代码：只能在代码中输入日期才能判断啊！
以下是我的代码！
我希望这个程序在运行时随便我们输入日期：
各位大侠帮帮忙：
 public class xz{ 
   
   //10.星座
   static void getXingZuo(int month,int day)
    {
        
     if(day > 31 || day<1)
     System.out.println("日期输入错误");
     else
     {
      switch(month)
      {
        case 1:
        if(day<22)
        System.out.println("星座是：摩羯座");
        else
        System.out.println("星座是：水瓶座");
        break;
        case 2:
        if(day<22)
        System.out.println("星座是：水瓶座");
        else
        System.out.println("星座是：双鱼座");
        break;
        case 3:
        if(day<22)
        System.out.println("星座是：双鱼座");
        else
        System.out.println("星座是：白羊座");
        break;
        case 4:
        if(day<22)
        System.out.println("星座是：白羊座");
        else
        System.out.println("星座是：金牛座");
        break;
        case 5:
        if(day<22)
        System.out.println("星座是：金牛座");
        else
        System.out.println("星座是：双子座");
        break;
        case 6:
        if(day<22)
        System.out.println("星座是：双子座");
        else
        System.out.println("星座是：巨蟹座");
        break;
        case 7:
        if(day<22)
        System.out.println("星座是：巨蟹座");
        else
        System.out.println("星座是：狮子座");
        break;
        case 8:
        if(day<22)
        System.out.println("星座是：狮子座");
        else
        System.out.println("星座是：处女座");
        break;
        case 9:
        if(day<22)
        System.out.println("星座是：处女座");
        else
        System.out.println("星座是：天枰座");
        break;
        case 10:
        if(day<22)
        System.out.println("星座是：天枰座");
        else
        System.out.println("星座是：天蝎座");
        break;
        case 11:
        if(day<22)
        System.out.println("星座是：天蝎座");
        else
        System.out.println("星座是：射手座");
        break;
        case 12:
        if(day<22)
        System.out.println("星座是：射手座");
        else
        System.out.println("星座是：摩羯座");
        break;
        default:
        System.out.println("日期输入错误");
      }
    }
   }
   public static void main(String[] args){
    getXingZuo(12,1);
    }
  }

Answer 1

用main函数的args做传入参数，要做的漂亮点的话就做个界面呗

Answer 2

getXingZuo(args[0],args[1]);java getXingZuo 12 1

Answer 3

import java.util.Scanner;
public class ConstallationDemo {
    static void getConstallation(int month,int day)
    {        if(day > 31 || day<1)
            System.out.println("日期输入错误");
        else
        {
            switch(month)
            {
                case 1:
                    if(day<22)
                        System.out.println("星座是：摩羯座");
                    else
                        System.out.println("星座是：水瓶座");
                    break;
                case 2:
                    if(day<22)
                        System.out.println("星座是：水瓶座");
                    else
                        System.out.println("星座是：双鱼座");
                    break;
                case 3:
                    if(day<22)
                        System.out.println("星座是：双鱼座");
                    else
                        System.out.println("星座是：白羊座");
                    break;
                case 4:
                    if(day<22)
                        System.out.println("星座是：白羊座");
                    else
                        System.out.println("星座是：金牛座");
                    break;
                case 5:
                    if(day<22)
                        System.out.println("星座是：金牛座");
                    else
                        System.out.println("星座是：双子座");
                    break;
                case 6:
                    if(day<22)
                        System.out.println("星座是：双子座");
                    else
                        System.out.println("星座是：巨蟹座");
                    break;
                case 7:
                    if(day<22)
                        System.out.println("星座是：巨蟹座");
                    else
                        System.out.println("星座是：狮子座");
                    break;
                case 8:
                    if(day<22)
                        System.out.println("星座是：狮子座");
                    else
                        System.out.println("星座是：处女座");
                    break;
                case 9:
                    if(day<22)
                        System.out.println("星座是：处女座");
                    else
                        System.out.println("星座是：天枰座");
                    break;
                case 10:
                    if(day<22)
                        System.out.println("星座是：天枰座");
                    else
                        System.out.println("星座是：天蝎座");
                    break;
                case 11:
                    if(day<22)
                        System.out.println("星座是：天蝎座");
                    else
                        System.out.println("星座是：射手座");
                    break;
                case 12:
                    if(day<22)
                        System.out.println("星座是：射手座");
                    else
                        System.out.println("星座是：摩羯座");
                    break;
                default:
                    System.out.println("日期输入错误");
            }
        }
    }
    public static void main(String[] args){
        Scanner scanner=new Scanner(System.in);
        System.out.print("请输入你的出生月份");
        int month=scanner.nextInt();
        System.out.print("请输入你的出生日期");
        int day=scanner.nextInt();
        getConstallation(month,day);
    }
}