This question is based on Java Programming language. The below java code, displays the calendar for a given month of the year. The program prompts the user to enter the year and the month, then displays the entire calendar for the month. Can you explain the code and its functions ? you can explain in paragraph or point form. //Java code // Header file to take user input import java.util.Scanner; //main class public class Main { //method is used to check days for the month public static int dayOfMonth(int mon, int day, int yr) { int y = yr - (14 - mon) / 12; int x = y + y/4 - y/100 + y/400; int m = mon + 12 * ((14 - mon) / 12) - 2; int d = (day + x + (31*m)/12) % 7; return d; //return day of month } //function is used to check whether the year is leap year or not public static boolean leapYear(int yr) { //check using if-else if ((yr % 4 == 0) && (yr % 100 != 0)) return true; //return true if not a leapYear if (yr % 400 == 0) return true; //return true if not a leapYear return false; //return false if not a leapYear } //main method public static void main(String[] args) { Scanner in = new Scanner(System.in); //ask for user input System.out.print("Enter full year (e.g., 2022): "); int yr = in.nextInt(); //user input for year System.out.print("Enter month in number between 1 and 12: "); int mon = in.nextInt(); //user input for month //name of each month, first is blank so that january is in the first index String[] month = {"", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}; // number of days present in each month int[] days = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; // checking for leap year if (mon == 2 && leapYear(yr)) days[mon] = 29; // month name and days name System.out.println(" " + month[mon] + " " + yr); System.out.println("----------------------------–"); System.out.println("Sun Mon Tue Wed Thu Fri Sat"); // first day int d = dayOfMonth(mon, 1, yr); // printing the calendar for (int i = 0; i < d; i++) System.out.print(" "); for (int i = 1; i <= days[mon]; i++) { System.out.printf("%3d ", i); if (((i + d) % 7 == 0) || (i == days[mon])) System.out.println(); } } }
This question is based on Java
The below java code, displays the calendar for a given month of the year. The program prompts the user to enter the year and the month, then displays the entire calendar for the month. Can you explain the code and its functions ? you can explain in paragraph or point form.
//Java code
// Header file to take user input
import java.util.Scanner;
//main class
public class Main
{
//method is used to check days for the month
public static int dayOfMonth(int mon, int day, int yr) {
int y = yr - (14 - mon) / 12;
int x = y + y/4 - y/100 + y/400;
int m = mon + 12 * ((14 - mon) / 12) - 2;
int d = (day + x + (31*m)/12) % 7;
return d; //return day of month
}
//function is used to check whether the year is leap year or not
public static boolean leapYear(int yr) {
//check using if-else
if ((yr % 4 == 0) && (yr % 100 != 0))
return true; //return true if not a leapYear
if (yr % 400 == 0)
return true; //return true if not a leapYear
return false; //return false if not a leapYear
}
//main method
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
//ask for user input
System.out.print("Enter full year (e.g., 2022): ");
int yr = in.nextInt(); //user input for year
System.out.print("Enter month in number between 1 and 12: ");
int mon = in.nextInt(); //user input for month
//name of each month, first is blank so that january is in the first index
String[] month = {"", "January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"};
// number of days present in each month
int[] days = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
// checking for leap year
if (mon == 2 && leapYear(yr)) days[mon] = 29;
// month name and days name
System.out.println(" " + month[mon] + " " + yr);
System.out.println("----------------------------–");
System.out.println("Sun Mon Tue Wed Thu Fri Sat");
// first day
int d = dayOfMonth(mon, 1, yr);
// printing the calendar
for (int i = 0; i < d; i++)
System.out.print(" ");
for (int i = 1; i <= days[mon]; i++) {
System.out.printf("%3d ", i);
if (((i + d) % 7 == 0) || (i == days[mon])) System.out.println();
}
}
}
Step by step
Solved in 4 steps
