利用Java来实现万年历 

package demo;import java.util.Scanner;public class CalendarTest {public static void main(String[]args) {Scanner sc = new Scanner(System.in);Calendar c = new Calendar();System.out.println("请输入年份：");int year = sc.nextInt();System.out.println("请输入月份：");int month = sc.nextInt();c.show(year,month);}}class Calendar{//判断闰年和平年public boolean isLeapYear(int year){return ((year % 4 == 0)&&(year % 100 != 0)||(year % 400 == 0));}//获取指定月份的天数public int getTotalDaysOfMonth(int year,int month){int total;//判断月switch (month){case 1: case 3: case 5: case 7: case 8: case 12: case 10:total = 31;break;case 2:total = (isLeapYear(year)?29:28);break;default:total = 30;break;}return total;}public int getWeekOfMonth(int year,int month){int total = 0;for (int i = 1; i < year; ++i){total += (isLeapYear(year)?366:365);}for (int i = 1; i < month; ++i){total += getTotalDaysOfMonth(year,i);}total %= 7;total = (total+1)%7;return total;}public void show(int year,int month){System.out.println("\033[1;95m"+"\t\t"+" "+year+"年"+month+"月");System.out.println("\033[1;96m"+"---------------------------");String[] week = {"日","一","二","三","四","五","六"};for(int i = 0; i < 7; ++i){if(week[i].equals("六") || week[i].equals("日")) System.out.print("\033[32m"+week[i]+"\t");else System.out.print("\033[33m"+week[i]+"\t");}System.out.println();int weeks = getWeekOfMonth(year,month);for (int i = 0; i<weeks; ++i) System.out.print("\t");int days = getTotalDaysOfMonth(year,month);for (int i = weeks,j = 1; j <= days; ++i,++j){if (i % 7 == 0 || i % 7 == 6)System.out.print("\033[32m"+j+"\t");else System.out.print("\033[33m"+j+"\t");if ((i+1) % 7 ==0) System.out.println();}System.out.println();}}

实现：