ciip-grp8-password-manager/src/main/java/PasswordValidator.java

import java.util.regex.Pattern;

public class PasswordValidator {
    int minLength = 6;
    boolean requireUppercase = true;
    boolean requireLowercase = true;
    boolean requireDigit = true;

    private final Pattern uppercasePattern = Pattern.compile("^(?=.*[A-Z]).+$");
    private final Pattern lowercasePattern = Pattern.compile("^(?=.*[a-z]).+$");
    private final Pattern digitPattern = Pattern.compile("^(?=.*\\d).+$");

    public boolean validate(String password) {
        if (password.length() < minLength) {
            return false;
        } else if (requireUppercase && !uppercasePattern.matcher(password).matches()) {
            return false;
        } else if (requireLowercase && !lowercasePattern.matcher(password).matches()) {
            return false;
        } else if (requireDigit && !digitPattern.matcher(password).matches()) {
            return false;
        }
        return true;
    }

    public int getMinLength() {
        return minLength;
    }

    public void setMinLength(int minLength) {
        this.minLength = minLength;
    }

    public boolean isRequireUppercase() {
        return requireUppercase;
    }

    public void setRequireUppercase(boolean requireUppercase) {
        this.requireUppercase = requireUppercase;
    }

    public boolean isRequireLowercase() {
        return requireLowercase;
    }

    public void setRequireLowercase(boolean requireLowercase) {
        this.requireLowercase = requireLowercase;
    }

    public boolean isRequireDigit() {
        return requireDigit;
    }

    public void setRequireDigit(boolean requireDigit) {
        this.requireDigit = requireDigit;
    }
}