import java.io.*;

public class CalendarMonth
{
static final int WEEK = 7;

public static void main(String[] args) throws IOException
{
String proceed;
char repeatCheck;
int days;
String leapYear;
char leapYearCheck;
int startDay;
String monthName;

do
{
days = getDays();


System.out.println(days);


System.out.println("Please enter a number 1-7 that the month starts on: (1 for sunday, 2 for monday, etc)");
startDay = Keyboard.readInt();


while(startDay < 1 || startDay > 7)
{
System.out.println("You did not enter a number 1-7, Try again: ");
startDay = Keyboard.readInt();
}

System.out.println(" S M T W TH F Sa");

printMonth(days,startDay);


System.out.println("\nWould you like to print another month?");
proceed = Keyboard.readString();


repeatCheck = proceed.charAt(0);


}while(repeatCheck == 'y');
}






public static int getDays() throws IOException
{
int month;
String leapYear;
int startDay;
int days = 0;
char leapYearCheck;

System.out.println("Please input a number 1-12 to print the corresponding month: ");
month = Keyboard.readInt();
while (month < 1 || month > 12)
{
System.out.println("You did not put a number 1-12, Try again: ");
month = Keyboard.readInt();
}

switch(month)
{
case 1: days = 31;
break;
case 2:

System.out.println("is it a leap year? ");
leapYear = Keyboard.readString();
leapYearCheck = leapYear.charAt(0);

while(leapYearCheck != 'y' && leapYearCheck != 'n')
{
System.out.println("you did not enter a yes or no answer, is it a leap year?");
leapYear = Keyboard.readString();
leapYearCheck = leapYear.charAt(0);
}

if (leapYearCheck == 'y')
{
days= 29;
}
else
{
days = 28;
}

break;
case 3: days = 31;
break;
case 4: days = 30;
break;
case 5: days = 31;
break;
case 6: days = 30;
break;
case 7: days = 31;
break;
case 8: days = 31;
break;
case 9: days = 30;
break;
case 10: days = 31;
break;
case 11: days = 30;
break;
case 12: days = 31;
break;
}

return days;
}





public static void printMonth(int days, int startDay)
{
int count;

count = startDay;
for (int counter = 1; counter <= 7; counter++)
{
if (counter < startDay)
{
System.out.print(" ");
count = count-1;
}
else
{
System.out.printf("%3d", count);

count++;
}
}


System.out.println();
for(int restOfTheMonth = count; restOfTheMonth <= days; restOfTheMonth++)
{

System.out.printf("%3d", restOfTheMonth);
if (restOfTheMonth%WEEK==0)
{
System.out.println();
}
}



}


}

" "

" "

var month_total_days = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
starting_day = 3; // wednesday
current_day = starting_day; // first current day is determined by starting day
var week_str = ''; // we print whole weeks at a time

// print calendar header
$('pre').append('<strong>' + ' Su Mo Tu We Th Fr Sa' + '</strong>' + '\n');

for(day = 1; day <= month_total_days[1]; day++){

// rise and shine
current_day++;

// on the first day, we apply the padding for the days we're skipping
if(day == 1){
for(i = 1; i <= starting_day; i++){
week_str += ' ' + ' '; // 1 weekday margin + 2 padding because integers will be < 10
}
}

// [ 1] vs [23]: 1 weekday margin + 1 padding is needed for 1 char length
week_str += (day < 10) ? ' ' : ' ';

// print the date
week_str += day;

// on the last day of the week, we print every date gathered into our week_str/ing
if(current_day == 7){
$('pre').append(week_str + '\n');
week_str = '';
current_day = 0;
} else if(day == month_total_days[1]){
$('pre').append(week_str + '\n');
}
}