Programming & Computer Science Answers

An ATM allows a customer to withdraw a maximum of $500 per day.

If a customer withdraws more than $300, the service charge is 4% of

the amount over $300. If the customer does not have sufficient money

in the account, the ATM informs the customer about the insufficient

funds and gives the customer the option to withdraw the money for a

service charge of $25.00. If there is no money in the account or if the

account balance is negative, the ATM does not allow the customer to

withdraw any money. If the amount to be withdrawn is greater than

$500, the ATM informs the customer about the maximum amount

that can be withdrawn. Write an algorithm that allows the customer to

enter the amount to be withdrawn. The algorithm then checks the total

amount in the account, dispenses the money to the customer, and debits

the account by the amount withdrawn and the service charges, if any.

use dynamic array as the underlying data structure to hold the list contents. The array will hold integer data. Here are the functions that your program should offer ( options in MENU):

1. Insert an item

Insert function will insert the value at the start of the list. Tell the user how many list elements are shifted to make room for new item.

2. Delete an item

It will ask the user for the value, if the value is present, it will be deleted from the list and function displays how many items are shifted to delete the value

3. Print out the items in the list

Task 1: Username and Domain Name extraction [10 points]

Write a program that reads an email address from the keyboard. Assuming that the email address contains one at-sign (@) after the username, extract and print the username and the domain name of the email address.

Input: rayanas@oldwestbury.edu

Output:

Username: rayons

Domain name: oldwestbury.com

Task 2: Company name extraction from URL [10 points]

Write a program that reads a commercial website URL from the keyboard; you should expect that the URL starts with www, and ends with .com. Retrieve the name of the site, convert the first letter to uppercase to get the company name, and output it.

Input: www.yahoo.com

Output:

Company name: Yahoo

*use Scanner class to read a String as input from the keyboard for both the tasks. Check the following two lines of code for doing that.

Scanner scan = new Scanner(System.in);

String str = scan.next(); 

Write the following IP addresses in CIDR notation: 135.1.1.25 Mask 255.255. 248.0

1. Suppose the company wants to secure its websites by implementing a VPN tunneling. 

Which tunneling approach is the most suitable solution for the company? Why?

2. An internet service provider (ISP) a site-to-site VPN service to its clients (mainly companies

that have multiple branch offices in different locations in the country). As an advanced 

computer network student which VPN implementation approach is best fitted for both ISP 

and the clients? Why?

1.A router can process 2 million packets/sec. The load offered to it is 1.5 million packets/sec

on average. If a route from source to destination contains 10 routers, how much time is spent

being queued and serviced by the router?

2.Exactly describe why we cannot use the CIDR notation for the following blocks of IP 

addresses:

a. AD HOC block with the range 224.0.2.0 to 224.0.255.255.

b. The first reserved block with the range 224.3.0.0 to 231.255.255.255.

c. The second reserved block with the range 234.0.0.0 to 238.255.255.255

A teacher asked the class leader to prepare the list of  student details (name, Roll number, Branch and Sem) of his section by using read method and also to display the details of the students using java program

A hospital wants to store a record regarding its patients. The information to store include

• Name of the patient
• Age of the patient
• Date of Birth of Patient (yyyy/mm/dd)
• Disease
• Date of Admission
• Date of discharge

Create a class called Patient to store the above information. Date of Birth and Disease of a patient should be private data attributes. Create public methods which take all above information as input from user and then display / output all the information.

Javascript excercise: Create a new html file. Give provision for users to insert a number (you can use prompt boxes or text fields). If the user inserts a number, show the multiplication table for that number in console log. But, if the user inserts anything other than a number, show appropriate error messages.

 Continuation of assignment from Lab 5: When all the mandatory form details (name and email) are enterd correctly to the form created in lab 5, the form is considered valid. When user clicks on submit button, show a preview of the entire form data in an alert window. (hint: refer to examples done in class)