之前用C语言写过输出任意一年年历的程序，现在转为Java语言，并在控制台输出，完整代码如下
public class PrintAnyYear { public static void main(String[] args) { int year = 2019; System.out.print("请输入一个年份："); Scanner scanner = new Scanner(System.in); year = scanner.nextInt(); System.out.println(String.format(Locale.CHINA, "\n\t\t\t\t\t\t\t\t%d年\n", year)); printYearData(getYearData(year)); scanner.close(); } /*判断闰年*/ private static boolean judgeLeap(int year) { if (year < 1800) { return year % 4 == 0; } else { return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0); } } /*获取1～year这些年中的闰年数*/ private static int getCountofLeap(int year) { int count = 0; for (int i = 1; i < year; i++) { if (judgeLeap(i)) count++; } return count; } /*获取该年每月第一天位置*/ private static int[] getFirstDay(int year) { int[] firstDay = new int[13]; int FirstDay1 = 6;//初始化公元1年第一天位置 int[] lastDay = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};//平年每月天数 int LeapCount = getCountofLeap(year);//1～year之间的闰年数 long temp = 365 * (year - 1); if (year > 1752) { temp = temp - 11; } firstDay[1] = (int) ((temp + LeapCount + FirstDay1) % 7);//该年第一个月第一天的位置 if (judgeLeap(year)) {//闰年二月特殊考虑 lastDay[2] = 29; } if (year == 1752) {//1752年特殊考虑 lastDay[9] = 19; } for (int i = 2; i < 13; i++) {//获取其他月份的第一天位置 firstDay[i] = (lastDay[i - 1] + firstDay[i - 1]) % 7; } return firstDay; } /*填充一年数据*/ private static int[][][] getYearData(int year) { int[][][] oneYear = new int[12][6][7]; int[] lastDay = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; int[] firstDay = getFirstDay(year); if (judgeLeap(year)) { lastDay[2] = 29; } int first, last; for (int month = 0; month < 12; month++) { first = 1; last = 1; for (int week = 0; week < 6; week++) { for (int day = 0; day < 7; day++) {//填充一周 if (first > firstDay[month + 1] && last <= lastDay[month + 1]) { oneYear[month][week][day] = last; if (year == 1752 && month == 8 && last == 2) {//1752年9月特殊考虑 last = last + 11; } last++; } else { oneYear[month][week][day] = 0; } first++; } } } return oneYear; } /*输出一年数据*/ private static void printYearData(int[][][] yearData) { String[] moth = {"一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"}; for (int i = 0, j = 0; i < 4; i++) { System.out.println(String.format("\t\t %s\t\t\t\t\t %s\t\t\t\t\t %s", moth[j], moth[j + 1], moth[j + 2])); System.out.println(" 日 一 二 三 四 五 六\t 日 一 二 三 四 五 六\t 日 一 二 三 四 五 六"); for (int week = 0; week < 6; week++) { for (int month = j; month < j + 3; month++) { for (int day = 0; day < 7; day++)//输出一周 { if (yearData[month][week][day] == 0) { System.out.print(String.format("<", ' ')); } else { System.out.print(String.format(Locale.CHINA, "=", yearData[month][week][day])); } } System.out.print("\t"); } System.out.println(); } j = j + 3; } } }运行效果：
