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import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Scanner;
public class ch2_1
{
/**
* @param args
*/
public static void main(String[] args)
{
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
System.out.print("请输入起始年份：");
int year=input.nextInt();
System.out.print("请输入打算输出未来几年：");
int n=input.nextInt();
getBlackFri(year,n);
}
//打印未来几年的黑色星期五，判断每个月的13号是否是星期五
public static void getBlackFri(int year,int n)
{
//year为输入的年份，n为未来多少年
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd E");
// int years = Integer.parseInt(year);
int k=0;
// Calendar cal = new GregorianCalendar();
Calendar cal = Calendar.getInstance();
while(k<n)
{
for (int i = 0; i < 12; i++)
{
cal.set(year, i,13);
if(5==(cal.get(Calendar.DAY_OF_WEEK)-1))
{
System.out.println("黑色星期五："+sdf.format(cal.getTime()));
}
}
year++;
k++;
}
}
}