JAVA implementation of the simple calendar code
- 2020-04-01 04:16:45
- OfStack
This article illustrates a simple perpetual calendar implemented in JAVA. Share with you for your reference, as follows:
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;
//Year, month
Scanner input = new Scanner(System.in);
System.out.print(" Year: ");
years = input.nextInt();
System.out.print(" Month of entry: ");
month = input.nextInt();
System.out.println("n*********"+years+" years "+month+" month Day � table ************");
//Decide if it's a leap year
if((years % 4 == 0 && years % 100 != 0) || (years % 400 == 0)){
isRun = true;
}
int totalDays = 0; //Tired day � �
//The days from January 1, 1900
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;
//The root color determines the sky color
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(" Enter month incorrectly !!");
}
if(j < month){
beforeDays = beforeDays + days;
}
}
totalDays = totalDays + beforeDays; //So far so good
int firstDayOfMonth = 0;
int temp = 1 + totalDays % 7 ;
if(temp == 7){
firstDayOfMonth = 0; // � ,
}else{
firstDayOfMonth = temp;
}
System.out.println(" Sunday t Monday t Tuesday t Wednesday t Thursday t Friday t Saturday ");
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");
}
}
}
}
About the production of the calendar interested in friends can also refer to this site online tools:
(link: http://tools.jb51.net/bianmin/wannianli)
(link: http://tools.jb51.net/bianmin/webwannianli)
I hope this article has been helpful to you in Java programming.