Question

Create a new project called Date In This new project you are going to design a class of Date. This mean that you need to create functions within the class to validate the Date for example: is it a leap year? How many days a months has? How many months are? Create a simple main menu capable of entering a date and validating a date. Instructions • Create a class of Date with attribues and member functions (remember the use of validation of dates) • Create a main menu with 2 options o (1) Enter date o (2) Exit • If the user selects the option #1 then the system asks for day, month and year and validates. If it is valid it displays in the console/ screen “Valid Date” followed by the date in the format of your choosing (day/month/year or MonthDescription day, year or year/month/day). If the date is not valid, the system displays “Not a valid date” and asks the user to re-enter the date until a valid one is entered. • If the user selects option #2 then the system exits • Remember to create a destructor, a constructor and the get and set for each attribute. The purpose of this lab is to create member functions capable of handling validations. Common functions are: IsValidDate and isLeapYear. For the function of Leap Year remember the standard formula.

Answer 1

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
public class DateValidatation{
   //this is for validate the date entered by the user
public static boolean validateJavaDate(String inputDate)
{
   //mm/dd//yyyy this is the formate to check
   SimpleDateFormat sdfrmt = new SimpleDateFormat("MM/dd/yyyy");
   sdfrmt.setLenient(false);
   try
   {
       //parsing user input to required format
   Date javaDate = sdfrmt.parse(inputDate);
   System.out.println(inputDate+" is valid date format");
   }
   //if it not in the valid formate it will throw the exception while parsing
   catch (ParseException e)
   {
   System.out.println(inputDate+" is Invalid Date format");
   return false;
   }
   return true;
}
public static void main(String args[]){
   Scanner in = new Scanner(System.in);
// Display the menu
System.out.println("1) Enter Date");
System.out.println("2) Exit");

System.out.print("Please enter your choice: ");
  
//Get user's choice
int choice=in.nextInt();

//Display the title of the chosen module
switch (choice) {
case 1:
{
       //taking user input until it is correct
       while(true)
       {
       System.out.print("Please enter date(MM/dd/yyyy): ");
       Scanner sc = new Scanner(System.in);
       String date=sc.nextLine();
       if(validateJavaDate(date)){break;}
       }
       break;
}
//case 2 for exiiting the programme
case 2: System.out.println("Thank You Exit the programme...");
       System.exit(0);
break;
default: System.out.println("Invalid choice");
}//end of switch
}
}

1) Enter Date 2) Exit Please enter your choice: 1 Please enter date(MM/dd/yyyy): 12/09/2020 12/09/2020 is valid date format