I know I correctly inputting in the def the balance and name but I am stumped on how to allow it to recognize a negative balance and how to supply the account number. ___init__: The constructor will take an account number, an owner name, and a balance, andcreate a new Account. An account number must be supplied, but owner name should default to'unknown' and balance should default to 0 if values are not given. If the balance given is negative, theconstructor should display an error message, and not create the account.

Answered: I know I correctly inputting in the def…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I know I correctly inputting in the def the balance and name but I am stumped on how to allow it to recognize a negative balance and how to supply the account number.

___init__: The constructor will take an account number, an owner name, and a balance, and
create a new Account. An account number must be supplied, but owner name should default to
'unknown' and balance should default to 0 if values are not given. If the balance given is negative, the
constructor should display an error message, and not create the account.

Expert Solution

Step 1

A constructor is a method that is used to initialize objects. It is called when an object of a class is created.

Characteristics of Constructors:

Constructors cannot be private.
A constructor cannot be abstract, static, final.
A constructor can be overloaded.
Constructors cannot return a value.
Constructors do not have a return type; not even void.
An abstract class can have the constructor.
The Constructor's name must be similar to that of the class name inside which it resides.

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