Java codeimport 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);

}

}