Im currently working on a date validation program. At the end of displaying a date, the program should ask the user if they wish to enter another date and should loop around until the user answers no. I place a while loop after gathering input from the user. However i keep on getting "Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0" error.
There are more code at the top. It basically the same codes as below.
System.out.println("Do you wish to continue?: ");
String input=reader.nextLine();
char option=input.toLowerCase().charAt(0);
while(option=='y')
{
System.out.println("Enter the day for today's date: ");
day=reader.nextInt();
System.out.println("Enter the month for today's date: ");
month=reader.nextInt();
System.out.println("Enter the year for today's date: ");
year=reader.nextInt();
if(year<1800 || year>3000)
System.out.println("***ERROR: Invalid input - this is not
a legal date.");
else if(month==4 || month==6 || month==9 || month==11)
{even(day,month,year);}
else if (month==1 || month==3 || month==5 || month==7 ||
month==8 || month==10)
{odd(day,month,year);}
else if(month==2)
{February(day,month,year);}
else if(month==12)
{December(day,month,year);}
else
{System.out.println("***ERROR: Invalid input - this is not
a legal date.");}
System.out.println("Do you wish to continue?: ");
input=reader.nextLine();
option=input.toLowerCase().charAt(0);
}
System.out.println("End of program!");
If user enters Y when the line "Do you wish to continue is printed", the program should loop else the program should stop.
