public String getBinaryInput(){
        if(!this.inputSet)throw new IllegalArgumentException("No input has been entered");
        if(!this.trueDtoA){
            System.out.println("Class - DtoA;  method - getBinaryInput");
            System.out.println("This instance of DtoA is not a true simulation of an DAC");
            System.out.println("It is simple an 'D to A marker'");
            System.out.println("getBinaryInput has returned null");
            this.binaryInput = null;
        }

        return this.binaryInput;
    }