Encapsulation is one of the fundamental concepts in object-oriented programming. It is also often used to hide the internal representation or state of an object from outside. This is called information hiding. By using the data in Figure 1, show your investigation if hacker try to approach to gain access to the code of your bank account. class Account { private int account_number; private int account_balance; public void show Data() { I/ code to show data public void deposit(int a) { if (a < 0) { I/ show error } else account_balance = account_balance + a; Figure 1: Account class (a) Approach 1: He tries to deposit an invalid amount (say -100) into your bank account by manipulating the code. Is that possible? Explain. class Hackerf Account a= new Account (); a.account_balance= -100;

Encapsulation is one of the fundamental concepts in object-oriented programming. It is also often used to hide the internal representation or state of an object from outside. This is called information hiding. By using the data in Figure 1, show your investigation if hacker try to approach to gain access to the code of your bank account. class Account { private int account_number; private int account_balance; public void show Data() { I/ code to show data public void deposit(int a) { if (a < 0) { I/ show error } else account_balance = account_balance + a; Figure 1: Account class (a) Approach 1: He tries to deposit an invalid amount (say -100) into your bank account by manipulating the code. Is that possible? Explain. class Hackerf Account a= new Account (); a.account_balance= -100;

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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Encapsulation is one of the fundamental concepts in object-oriented programming. It is also often used to hide the internal representation or state of an object from outside. This is called information hiding. By using the data in Figure 1, show your investigation if hacker try to approach to gain access to the code of your bank account. class Account { private int account_number; private int account_balance; public void show Data() { //code to show data public void deposit(int a) { if (a < 0) { //show error } else account_balance = account_balance + a; Figure 1: Account class
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