Shoulder surfing Program Plan: Import required package. Define “AuthenticateTest” class. Define main function. Initializes actual PIN. Create an array “randomDigits” for randomly generated digits. Create an array “userEnteredDigits” for digits entered by the user. Generate random numbers from “1” to “3” for each digit using for loop. Display the sequence of PIN and NUM to screen. Display “10” digits random numbers for “NUM”. Create object for scanner class. Display user prompt statement. Read the five digits PIN number from user. Extract the digits from the code and store in the “userEnteredDigits” array. Convert char to corresponding digit. Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”. If it is match, then display the message “Your password matches correctly!”. Otherwise, display the message “Invalid password.”. Define the boolean method “checkValidPassword()” with three arguments Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Question

Want to see the full answer?

Answer 1

Question

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Write the SQL code that permits to implement the tables: Student and Transcript. NB: Add the constraints on the attributes – keys and other.

Draw an ERD that will involve the entity types: Professor, Student, Department and Course. Be sure to add relationship types, key attributes, attributes and multiplicity on the ERD.

Draw an ERD that represents a book in a library system. Be sure to add relationship types, key attributes, attributes and multiplicity on the ERD.

Answer 2

Question

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Answer 6

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Answer 7

Chapter 7, Problem 8PP

Program Plan Intro

Shoulder surfing

Program Plan:

Import required package.

Define “AuthenticateTest” class.

Define main function.

Initializes actual PIN.

Create an array “randomDigits” for randomly generated digits.

Create an array “userEnteredDigits” for digits entered by the user.

Generate random numbers from “1” to “3” for each digit using for loop.

Display the sequence of PIN and NUM to screen.

Display “10” digits random numbers for “NUM”.

Create object for scanner class.

Display user prompt statement.

Read the five digits PIN number from user.

Extract the digits from the code and store in the “userEnteredDigits” array.

Convert char to corresponding digit.

Check whether the user entered password is equal to random PIN number of actual PIN numbers by calling the method “checkValidPassword()”.

If it is match, then display the message “Your password matches correctly!”.

Otherwise, display the message “Invalid password.”.

Define the boolean method “checkValidPassword()” with three arguments

Check PIN numbers one by one using “for” loop. If the user entered PIN is not equal to actual PIN, then returns “false”.

Answer 8

Expert Solution & Answer

Answer 9

Expert Solution & Answer

Answer 10

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 11

Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - Consider the following array: int [] a = new...Ch. 7.1 - What is wrong with the following code to...Ch. 7.1 - Write a complete Java program that reads 20 values...Ch. 7.2 - Write some Java code that will declare an array...Ch. 7.2 - Rewrite the method displayResults of the program...Ch. 7.2 - What output will be produced by the following...Ch. 7.2 - Give the definition of a static method called...

Solution Summary: The author explains how the Java program is used to check whether the user's five digit password is matched with actual PIN numbers.

Concept explainers

Want to see the full answer?

Chapter 7 Solutions