Problems with Loop Structure

Code Java:

---

import java.util.*;
import java.lang.*;
/**
 * To output whether a students password is valid or not.
 * 
 * @author (Sean)
 * @version (December 13, 2010)
 */
class SemesterProject
{
    public static void main(String[]args)throws Exception
    {
        Scanner scanReader = new Scanner(System.in);
        String password = "";
        int length;
        int passwordLength;
        int minimumCharacters = 12;
        int maximumCharacters = 25;
        int countCaps = 0;
        int countLowerCase = 0;
        int numbers = 0;
        int specialCharacters = 0;
 
            System.out.println("This was made by Sean");
            System.out.print("Please enter a password to be checked for validity:  ");
                password = scanReader.nextLine ();
                passwordLength = password.length ();
 
        try
                    {
 
                        if (passwordLength == 12)
                        { 
                            System.out.println("Your pasword meets the length requirments");
                        }
                        else
                        {
                            throw new Exception ();
                        }
                    }
                    catch (Exception ex)
                    {
                        System.out.println("Please Re-enter a valid password:  ");
                        password = scanReader.nextLine ();
                    }
        }
}

---

I need my program to tell whether the password meets the requirements (12 characters). Ive gotten it to print the request for in put and when it is inputed with a 12 character word it says it meets the requirements. When the incorrect amount of charactersis input it says to reenter a valid amount of characters. But then it wont reiterate after a new one is input. Could someone please help?:confused:

Thanks
Sean137

You don't have any loops in there at all.

Hint: You want to do something while a certain criteria is not met, right?

^:)^OH ......MY.......GOSH!!!!!^:)^

:)>-Thank YOU soooooooo much!!!:)>-

^:)^Ive been doing this for about 3 months now so I am kinda new.^:)^

ThankYou
Sean

Code java:

---

 
import java.util.Scanner;
 
class SemesterProject {
	public static void main(String[]args) {
		Scanner scanReader = new Scanner(System.in);
		String password = "";
		int length;
		int passwordLength;
		int minimumCharacters = 12;
		int maximumCharacters = 25;
		int countCaps = 0;
		int countLowerCase = 0;
		int numbers = 0;
		int specialCharacters = 0;
 
		System.out.println("This was made by jesamjasam, not Sean ;)");
		System.out.print("Please enter a password to be checked for validity:  ");
		password = scanReader.nextLine ();
		passwordLength = password.length ();
		while (passwordLength != 12) {
			System.out.println("Please Re-enter a valid password:  ");
			password = scanReader.nextLine ();
			passwordLength = password.length ();
		}
		System.out.println("Your pasword meets the length requirments");
	}
}

---

ok... I have one more question. How do you then take the same input word with the 12 characters and make sure that there are 3 and only 3 uppercase letters.

Thanks
Sean:confused:

Quote:

---

Originally Posted by jesamjasam

Code java:

---

 
import java.util.Scanner;
 
class SemesterProject {
	public static void main(String[]args) {
		Scanner scanReader = new Scanner(System.in);
		String password = "";
		int length;
		int passwordLength;
		int minimumCharacters = 12;
		int maximumCharacters = 25;
		int countCaps = 0;
		int countLowerCase = 0;
		int numbers = 0;
		int specialCharacters = 0;
 
		System.out.println("This was made by jesamjasam, not Sean ;)");
		System.out.print("Please enter a password to be checked for validity:  ");
		password = scanReader.nextLine ();
		passwordLength = password.length ();
		while (passwordLength != 12) {
			System.out.println("Please Re-enter a valid password:  ");
			password = scanReader.nextLine ();
			passwordLength = password.length ();
		}
		System.out.println("Your pasword meets the length requirments");
	}
}

---

---

Sigh. Spoonfeeding is bad enough. Spoonfeeding an answer that isn't as good as one already given is just pointless.

Why?

Quote:

---

Originally Posted by Sean137

ok... I have one more question. How do you then take the same input word with the 12 characters and make sure that there are 3 and only 3 uppercase letters.

Thanks
Sean:confused:

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Take a look at the String and Character APIs for useful functions. I'd suggest you break this up into more than one method: write one method that checks length, another that checks content, etc.

String (Java Platform SE 6)
Character (Java Platform SE 6)

Quote:

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Originally Posted by KevinWorkman

Sigh. Spoonfeeding is bad enough. Spoonfeeding an answer that isn't as good as one already given is just pointless.

Why?

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sorry didn't see you already answered that one :o

Quote:

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Originally Posted by jesamjasam

sorry didn't see you already answered that one :o

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Even had I not, spoonfeeding is still not helping. Especially when you don't even give out a great solution.