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

See similar textbooks

Similar questions

The Object data type (and those related to it like Function and Date) is the only JavaScript data type that has methods. True or False (Include valid reason)
The ACTION and METHOD attributes are used in both forms and code to perform certain actions.
Question 13 What is outpout? public class Vehicle { public void drive(){ System.out.println("Driving vehicle"); } } public class Plane extends Vehicle { @Override public void drive(){ System.out.println("Flying plane"); } public static void main(String args[]) { Vehicle myVehicle= = new Plane(); myVehicle.drive(); } Driving vehicle syntax error Flying plane Driving vehicle Flying plane }
public class Accumulator { private int total private String name; public Accummulator (string name , int total) { this .name = name; this .total=total; } } 3. In a main method, create an object of Accumulator with the name as "Mary" and total as 100.
The non-static class level variables and non-static methods of a class are known as a. instance members b. object behaviors c. object attributes O d. object references
Find the error(s) in the following class definition: public class Circle private double radius; public double setRadius(double a) { radius = a; public void getRadius() { return radius;
Portfolio Instructions: You are working for a financial advisor who creates portfolios of financial securities for his clients. A portfolio is a conglomeration of various financial assets, such as stocks and bonds, that together create a balanced collection of investments. When the financial advisor makes a purchase of securities on behalf of a client, a single transaction can include multiple shares of stock or multiple bonds. It is your job to create an object-oriented application that will allow the financial advisor to maintain the portfolios for his/her clients. You will need to create several classes to maintain this information: Security, Stock, Bond, Portfolio, and Date. The characteristics of stocks and bonds in a portfolio are shown below: Stocks: Bonds: Purchase date (Date) Purchase date (Date) Purchase price (double)…
A method CANNOT change the values of the instance variables of a class type that is an argument to the method call. True False
Object oriented programming is where you focus more of the data and the properties that make that data up, along with the actions you can preform by that data, rather than focusing on doing some procedural thing. Group of answer choices True False
Java script. class Chameleon { static colorChange(newColor) { this.newColor = newColor; return this.newColor; } constructor({ newColor = 'green' } = {}) { this.newColor = newColor; } } const freddie = new Chameleon({ newColor: 'purple' }); console.log(freddie.colorChange('orange'));.
A method that returns the value of an object's instance variable is calleda(n)a) mutator b) function c) constructor d) accessor
The Factory method design pattern is advantageous since it enables dynamically creating new objects of a certain kind. True Untrue