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Write a program that uses an ArrayList of parameter type Contact to store a database of contacts. The Contact class should store the contact's first and last name, phone number, and email address. Add appropriate accessor and mutator methods. Your database program should present a menu that allows the user add a contact, display all contacts, search for a specific contact and display it, or search for a specific contact and give the user the option to delete it. The searches should find any contact where an instance variable contains a target search string. For example, if "elmore" is the search target then any contact where the first name, last name, phone number, or email address contains "elmore" should be returned for display or deletion. Use a "for each" loop to iterate through the ArrayList.
Write a statement that changes the value of 6 in the array to a 12.
Describe the different parts of the C.I.A. triad and how each can be used to improve the overall security of an information system.
Some multicomputers permit running processes to be migrated from one node to another. Is it adequate to stop process, freeze its memory image, and just ship that off to different node?
The exact number of household records has not yet been determined, but you know that Marengo has fewer than 300 households. Develop the logic for a program that allows a user to enter each household size and dtermine the mean and median household ..
Suppose a hash function h is used and the signature must be valid for h(m) instead of m. Explain how this scheme protects against existential forgery
Why is it significant to control changes to asset baselines? Explain why is labeling process approached hierarchically?
Why do we require signed-and-magnitude representations of binary numbers in computers? Represent decimal values: -37, -54, and 56 in binary by using signed-and magnitude representation.
Show each of the intermediate matrices. Refer to section 9-1 of the textbook for the details of how matrices are calculated. Because no translations are involved, you can use 3 x 3 matrix math for your calculations.
The order of a leaf node in a B+ tree is the maximum number of pairs it can hold. Given that the block size is 1K bytes, data record pointer is 7 bytes long, the value field is 9bytes long and a block pointer is 6bytes long, what is the order of t..
Describe the structure of the World Wide Web as interconnected hypertext documents and create and validate HTML documents - create presentations using Cascading Style Sheets and DHTML.
We observe a closed system for 30 minutes, during which 1600 tasks are completed, from 12 terminals. Each terminal (source of tasks). What is the response time for jobs in the observed system?
Explains how hackers can hide their own IP address when attacking other computers, and how administrators can thwart this type of cracking
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