java: public void setByteValue(byte value) {if (!(fieldsData instanceof Byte)) {throw new IllegalArgumentException("cannot change value type from " + fieldsData.getClass().getSimpleName() + " to Byte");}fieldsData = Byte.valueOf(value);}
C#: public virtual void SetByteValue(byte value){if (!(FieldsData is Byte)){throw new System.ArgumentException("cannot change value type from " + FieldsData.GetType().Name + " to Byte");}FieldsData = new Byte(value);}