public boolean validateBrokerLicense() {
        
        final int VALID_LICENSE_LENGTH = 7;
        boolean valid = true;
        
        if (brokerLicenseNum.length() != VALID_LICENSE_LENGTH) {
            valid = false;
        }
        
        if (valid) {
            for (int charIndex = 0; charIndex <= 2; charIndex++) {
                if (brokerLicenseNum.charAt(charIndex) < 'A' || brokerLicenseNum.charAt(charIndex) > 'Z') 
                    valid = false;
        }
        
        if (valid) {
            for (int charIndex = 3; charIndex < VALID_LICENSE_LENGTH; charIndex++) {
                if (brokerLicenseNum.charAt(charIndex) < '0' || brokerLicenseNum.charAt(charIndex) > '9')
                    valid = false;
                }
            }
        }
        
        return valid;
    }
    
    public boolean validateDepartmentNumber() {
        
        final int VALID_NUMBER_LENGTH = 6;
        final int DASH_LOCATION = 3;
        final int NUM_BEFORE_DASH = 2;
        final int NUM_AFTER_DASH = 4;
        boolean valid = true;
        
        if (brokerDepartmentNum.length() != VALID_NUMBER_LENGTH) {
            valid = false;
        }
        
        if (valid) {
            if (brokerDepartmentNum.charAt(DASH_LOCATION) != '-') {
                valid = false;
            }
        
        if (valid) {
            for (int charIndex = 0; charIndex <= NUM_BEFORE_DASH; charIndex++) {
                if (brokerDepartmentNum.charAt(charIndex) < '1' || brokerDepartmentNum.charAt(charIndex) > '3') 
                    valid = false;
                }       
            }
        if (valid) {
                for (int charIndex = NUM_AFTER_DASH; charIndex < VALID_NUMBER_LENGTH; charIndex++) {
                     if (brokerDepartmentNum.charAt(charIndex) < '0' || brokerDepartmentNum.charAt(charIndex) > '9') 
                        valid = false;
                    }
                }
            }
        return valid;
    }