Answered: cial error code. public class Account {…

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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Question

!!!!!!!!!!Below is The following class maintains an account balance and returns a
special error code.
public class Account
{
private double balance;
// returns new balance or -1 if error
public double deposit(double amount)
{
if (amount > 0)
balance += amount;
else
return -1; // Code indicating error
return balance;
}
}
Rewrite the class so that it throws appropriate exception instead of
returning -1 as an error code. Write test code that attempts to deposit
invalid amounts and catches the exceptions that are thrown/.

Cose

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