2019-02-03java日历

//2019.2

import java.util.Scanner;

public class rl {

public static void main(String[] args){

Scanner in=new Scanner(System.in);

System.out.println("请输入年份");

int year=in.nextInt();

System.out.println("请输入月份");

int month1=in.nextInt();

int k=0,sum=0;

for(int i=1900;i<=year-1;i++){

if(i%4==0&&i%100!=0||i%400==0){

sum+=366;

}else{

sum+=365;

}

}

if(month1==2){

if(year%4==0&&year%100!=0||year%400==0){

k=29;

}else{

k=28;

}

}else{

if(month1==4||month1==6||month1==9||month1==11){

k=30;

}else{

k=31;

}

}

for(int month=1;month<=month1-1;month++){

if(month==2){

if(year%4==0&&year%100!=0||year%400==0){

sum+=29;

}else{

sum+=28;

}

}else{

if(month==4||month==6||month==9||month==11){

sum+=30;

}else{

sum+=31;

}

}

sum=sum+1;

}

int wekdays=sum%7;

System.out.println("日\t一\t二\t三\t四\t五\t六");

for(int x=1;x<=wekdays;x++){

System.out.print("\t");

}

for(int x=1;x<=k;x++){

if(sum%7==6){

System.out.print(x+"\n");

}else{

System.out.print(x+"\t");

}

sum++;

}

System.out.print("\t"+"\t"+"\t"+"\t"+"\t"+k+"\t");

System.out.print(wekdays);

}

}