本文实例讲述了JAVA实现的简单万年历。分享给大家供大家参考，具体如下：
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import java.util.Scanner;
public class PrintCalendar {
public static void main(String[] args) {
int years = 0;
int month = 0;
int days = 0;
boolean isRun = false;
//從控制台輸入年，月
Scanner input = new Scanner(System.in);
System.out.print("請輸入年份：");
years = input.nextInt();
System.out.print("請輸入月份：");
month = input.nextInt();
System.out.println("\n*********"+years+"年"+month+"月 日曆表************");
//判断是否是闰年
if((years % 4 == 0 && years % 100 != 0) || (years % 400 == 0)){
isRun = true;
}
int totalDays = 0; //累計天數
//計算距離1900年1月1日的天數
for(int i = 1900; i < years; i++){
if((i % 4 == 0 && i % 100 != 0) || (i % 400 == 0)){
totalDays = totalDays + 366;
}else{
totalDays = totalDays + 365;
}
}
int beforeDays = 0;
//根據月份判斷天數
for(int j = 1; j <= month; j++){
switch(j){
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
days = 31;
break;
case 4:
case 6:
case 9:
case 11:
days = 30;
break;
case 2:
if(isRun){
days = 29;
}else{
days = 28;
}
default:
System.out.println("输入月份不正确!!");
}
if(j < month){
beforeDays = beforeDays + days;
}
}
totalDays = totalDays + beforeDays; //統計到目前總天數
int firstDayOfMonth = 0;
int temp = 1 + totalDays % 7 ;
if(temp == 7){
firstDayOfMonth = 0; //週日
}else{
firstDayOfMonth = temp;
}
/* 输出日历 */
System.out.println("星期日\t星期一\t星期二\t星期三\t星期四\t星期五\t星期六");
for(int k = 0; k < firstDayOfMonth; k++){
System.out.print("\t");
}
for(int m = 1; m <= days; m++){
System.out.print( m + "\t");
if((totalDays + m) % 7 == 6){
System.out.print("\n");
}
}
}
}
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希望本文所述对大家Java程序设计有所帮助。