Question: Beginner Java Programming Please help me so that my user's input is of the form : , < employee number > Also please help me
Beginner Java Programming
Please help me so that my user's input is of the form
Also please help me with my employee number code, it continues to say invalid.
My Program:
import java.util.Scanner;
public class Assignment5
{
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String lastName, yearOfBirth, employeeNumber;
System.out.println("Please input a string of the form
do
{
System.out.print("last name: ");
lastName = in.nextLine();
if(isValidLastName(lastName))
{
System.out.print("valid");
}
else
{
System.out.print("invalid");
}
System.out.println();
} while (!isValidLastName(lastName));
do
{
System.out.print("birth year: ");
yearOfBirth = in.nextLine();
if(isValidYearOfBirth(yearOfBirth))
{
System.out.print("valid");
}
else
{
System.out.print("invalid");
}
System.out.println();
} while (!isValidYearOfBirth(yearOfBirth));
do
{
System.out.print("employee number: ");
employeeNumber = in.nextLine();
if(isValidEmployeeNumber(employeeNumber))
{
System.out.print("valid");
}
else
{
System.out.print("invalid");
}
System.out.println();
} while (!isValidEmployeeNumber(employeeNumber));
in.close();
}
//last name method
//1. contains only letters and spaces
//2. begins and ends with a letter
//3. does not contain 2 consecutive spaces
private static boolean isValidLastName(String nameStr)
{
if (!(Character.isLetter(nameStr.charAt(0))) || (!(Character.isLetter(nameStr.charAt(nameStr.length() - 1)))))//2.
{
return false;
}
for (int i = 1; i < nameStr.length() - 1; i++)
{
if (!Character.isLetter(nameStr.charAt(i)))
{
if (nameStr.charAt(i) != ' ') //1.
{
return false;
}
else if (nameStr.charAt(i + 1) == ' ') //3.
{
return false;
}
}
}
return true;
}
// birth year method
// integers between 1900 and 1999
// string length = 4
// format: 19DD (D: digit number)
private static boolean isValidYearOfBirth(String yearStr)
{
if (yearStr.length() != 4)
{
return false;
}
if (yearStr.charAt(0) != '1' || yearStr.charAt(1) != '9')
{
return false;
}
if (!(Character.isDigit(yearStr.charAt(2)) || Character.isDigit(yearStr.charAt(3))))
{
return false;
}
return true;
}
//Employee number method
//LDDD-DD-DDDD
//0123456789
//1. length 11
//2. dash character at char 4 & 7
//3. L: upper case letter
//4. D: digit
private static boolean isValidEmployeeNumber(String employeeNumberStr)
{
if (employeeNumberStr.length() != 12) //1.
{
return false;
}
if (!(Character.isUpperCase(employeeNumberStr.charAt(0)))) //3.
{
return false;
}
for (int i = 1; i < employeeNumberStr.length(); i++)
{
if (i == 5 || i == 8)
{
if (employeeNumberStr.charAt(i) != '-') //2.
{
return false;
}
}
else
{
if (!Character.isDigit(employeeNumberStr.charAt(i))) //4.
{
return false;
}
}
}
return true;
}
}
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