Question

public class Driver {

public static void main(String[] args) {


    int length=0;
    int MaxNumber=100;
    StringBuilder password = new StringBuilder();



    do {
        if (PasswordGenerator.matchLength (length))
            System.out.println("The length of the character is " + length);
        length++;
    } while (length < MaxNumber);

    do {
        if (PasswordGenerator.matchCharAt (password))
            System.out.println("The password is " + password);
    } while (  );



}
}

My code is supposed to find the length of a given password, which it already does. And then the next step is supposed to determine the password, by appending each individual character with Stringbuilder.

But anyways I keep getting an error that

method matchCharAt in class PasswordGenerator cannot be applied to given types:
Required: char, int
Found: StringBuilder
Reason: Actual and formal argument lists differ in length*

Any help would be awesome!

P.S. Password Generator is a “Made up” class, if you need documentation I can post it.

Answer 1

The error code says clearly, you are using wrong parameter:

method matchCharAt in class PasswordGenerator cannot be applied to given types: Required: char, int Found: StringBuilder Reason: Actual and formal argument lists differ in length

You need to provide two parameter: First one char, second a int

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