import java.util.Scanner; |
public class code1 { |
public static void main(String[] args) { |
Scanner in = new Scanner(System.in); |
System.out.println( "请输入你想查询的年份(至少为1900年):" ); |
int year = in.nextInt(); |
System.out.println( "请输入你想查询的月份:" ); |
int month = in.nextInt(); |
int flag = 0 ; |
while (flag == 0 ) { |
int sum = 0 ; |
int num = 0 ; |
for ( int date = 1900 ; date < year; date++) { |
if (date % 4 == 0 && date % 100 != 0 || date % 400 == 0 ) { |
sum = sum + 366 ; |
} else { |
sum = sum + 365 ; |
} |
} |
for ( int date1 = 1 ; date1 < month; date1++) { |
if (date1 == 1 || date1 == 3 || date1 == 5 || date1 == 7 || date1 == 8 || date1 == 10 || date1 == 12 ) { |
sum = sum + 31 ; |
} else if (date1 == 2 ) { |
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0 ) { |
sum = sum + 29 ; |
} else { |
sum = sum + 28 ; |
} |
} else { |
sum = sum + 30 ; |
} |
} |
sum = sum + 1 ; |
System.out.println( "**************************" ); |
System.out.println( "\t下面是" +year+ "年" +month+ "月" + "的日历" ); |
System.out.println( "**************************" ); |
System.out.println( "日\t一\t二\t三\t四\t五\t六" ); |
for ( int i = 0 ; i < (sum % 7 ); i++) { |
System.out.print( " \t" ); |
} |
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 | month == 12 ) { |
num = 31 ; |
} else if (month == 2 ) { |
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0 ) { |
num = 29 ; |
} else { |
num = 28 ; |
} |
} else { |
num = 30 ; |
} |
for ( int i = 1 ; i <= num; i++, sum++) { |
System.out.print(i); |
if (sum % 7 == 6 ) { |
System.out.println(); |
} else { |
System.out.print( "\t" ); |
} |
} |
System.out.println(); |
System.out.println( "请选择1、2、3" ); |
System.out.println( "1、观看上一个月的日历" ); |
System.out.println( "2、观看下一个月的日历" ); |
System.out.println( "3、结束" ); |
int select = in.nextInt(); |
if (select == 1 ) { |
month = month - 1 ; |
if (month == 0 ) { |
year = year - 1 ; |
month = 12 ; |
} |
flag = 0 ; |
} else if (select == 2 ) { |
month = month + 1 ; |
if (month == 13 ) { |
year = year + 1 ; |
month = 1 ; |
} |
flag = 0 ; |
} else { |
flag = 1 ; |
} |
} |
} |
} |