LANGUAGE IS JAVA

import java.util.Scanner;

public class DateConverter {

public static void main(String [] args) {

Scanner scnr = new Scanner(System.in);

int dayNumber;

int monthNumber;

int date;

int year;

String monthName = "", dayName="";

boolean valid = false;

System.out.println("Enter 4 integers representing dayNumber monthNumber date year:");

dayNumber = scnr.nextInt();

monthNumber = scnr.nextInt();

date = scnr.nextInt();

year = scnr.nextInt();

if ((dayNumber < 1) || (dayNumber > 7)){

System.out.println("Invalid day number: " + dayNumber + ", please enter a number from 1..7.");

}

else if ((monthNumber < 1) || (monthNumber > 12)) {

System.out.println("Invalid month number: " + monthNumber + ", please enter a number from 1..12.");

}

else if ((date < 1) || (date > 31)) {

System.out.println("Invalid date number: " + date + ", please enter a number from 1..31.");

}

switch (monthNumber) {

case 1: monthName="January";

break;

case 2: monthName="February";

break;

case 3: monthName="March";

break;

case 4: monthName="April";

break;

case 5: monthName="May";

break;

case 6: monthName="June";

break;

case 7: monthName="July";

break;

case 8: monthName="August";

break;

case 9: monthName="September";

break;

case 10: monthName="October";

break;

case 11: monthName="November";

break;

case 12: monthName="December";

break;

}

switch (dayNumber) {

case 1: dayName="Sunday";

break;

case 2: dayName="Monday";

break;

case 3: dayName="Tuesday";

break;

case 4: dayName="Wednesday";

break;

case 5: dayName="Thursday";

break;

case 6: dayName="Friday";

break;

case 7: dayName="Saturday";

break;

}

switch(monthNumber)

{

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

if (date >= 31) {

System.out.println("Invalid date: " + monthName + ", does not have " + date + " days, please enter a valid date.");

}

else {

valid = true;

}

break;

case 4:

case 6:

case 9:

case 11:

if (date >= 30) {

System.out.println("Invalid date: " + monthName + ", does not have date days, please enter a valid date.");

}

else {

valid = true;

}

break;

case 2:

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

{

if (date == 29) {

valid = true;

}

else {

System.out.println("Invalid date: " + year + " is a leap year, February does not have " + date + " days, please enter a valid date.");

}

}

else

{

if (date == 28)

{

valid = true;

}

else {

System.out.println("Invalid date: " + year + " is not a leap year, February does not have " + date + " days, please enter a valid date.");

}

}

break;

}

if(valid == true) {

System.out.println(dayNumber + " " + monthNumber + " " + date + " " + year + " is " + dayName + " " + monthName + " " + date+ ", " + year);

}

}

}

Fix output for

INPUT: 8 9 21 2001 OUTPUT: Invalid day number: 8, please enter a number from 1..7. 8 9 21 2001 is September 21, 2001

EXCEPTED OUTPUT: Invalid day number: 8, please enter a number from 1..7.