Re work assignment 1 onto a drawing panel and submit

MUST write a method showGrid(graphic, month, year) that produces output, see example below.

You also keep showGrid(month, year) in this Class as an optional overload of the method.

int month is a parameter, must be 1-12 for the twelve months of the year

int year is a year of the Gregorian calendar (today's European and American standard)

MUST use a method daysInMonth, Exercise #4, page 309, Chapter 4.

showGrid works for any month (1-12), and any year (1900-2100) including leap years.

(This was assignment 1):

import java.util.Scanner;

public class DisplayCalendar {

public static int day(int month, int day, int year) {

int y = year - (14 - month) / 12;

int x = y + y / 4 - y / 100 + y / 400;

int m = month + 12 * ((14 - month) / 12) - 2;

int d = (day + x + (31 * m) / 12) % 7;

return d;

}

public static void showGrid(int month, int year) {

String[] months = { "", // to make jan takes months[1] we left first value

"January", "February", "March", "April", "May", "June", "July", "August", "September", "October",

"November", "December" };

// days[i] = number of days in month i,in month 0 it is 0 days.in jan -31,in feb

// -28 ..

int[] days = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

// checking for leap year

if (month == 2 && isLeapYear(year))

days[month] = 29;

// print statements for calendar header

System.out.println(" " + months[month] + " " + year);

System.out.println(" sun mon tue wed thu fri Sat");

System.out.println(" +----+----+----+----+----+----+----");

// starting day

int d = day(month, 1, year);

// printing the calendar

for (int i = 0; i

System.out.printf(" ");

for (int i = 1; i

System.out.printf("%4d ", i);

if (((i + d) % 7 == 0) || (i == days[month]))

System.out.println(" ");

}

System.out.println(" +----+----+----+----+----+----+----");

}

// return true if the given year is a leap year

public static boolean isLeapYear(int year) {

if ((year % 4 == 0) && (year % 100 != 0))

return true;

if (year % 400 == 0)

return true;

return false;

}

public static void main(String[] args) {

int month = 0;

int year = 0;

Scanner reader = new Scanner(System.in); // Reading from System.in

System.out.println("Enter month ");

try {

month = reader.nextInt(); // from console input

if (month

throw new NumberFormatException();

}

} catch (NumberFormatException e) {

System.out.println("not a valid number");

System.exit(1);

}

System.out.println("Enter year ");

try {

year = reader.nextInt(); // from console input

if (year 2100) {

throw new NumberFormatException();

}

} catch (NumberFormatException e) {

System.out.println("not a valid number, give value between 1900 to 2100");

System.exit(1); // code execution stops

}

// calling show grid method

showGrid(month, year);

}

}

6 ALWAYS: Name, date, course WHY : Assignment #1 8 and whatever else might be relevant 9 10 11 public class DayGrid 12 public static void main(String[] args) 13 int month 8; // August in human world int year2017; DrawingPanel p new DrawingPanel (400,200); Graphics g p.getGraphics(); showGrid(g, month, year); // Assignment #2 //showGrld (month, year); // Assignment #1 15 17 18 19 20 21 22 public static void showGrid(Graphics g, int month, int year) 23 // method to display month as a grid Drawing Panel File View Help Sun Mon Tue Wed Thu Fri Sat 10 11 12 13 | 14 | 15 | 16 | 17 | 18 | 19 20 21 272829 30 31 22 23 24 25 26 x-385, y-176), r-255 g 255 b-255 43