You are building an application running inside the web browser (a classic SPA). You have to read a list of user's followers' usernames from the server. This list can contain thousands of usernames. You need to implement a component that finds a username from the list based on user input. For example given a list of usernames 'fred', 'frank', 'jerry' . When a user types fr , you should filter the list so that usernames starting with fr are included ( fred and frank in this case). How would you implement this (data structures and algorithms)?
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You are building an application running inside the web browser (a classic SPA). You have to read a list of user's followers' usernames from the server. This list can contain thousands of usernames. You need to implement a component that finds a username from the list based on user input. For example given a list of usernames 'fred', 'frank', 'jerry' . When a user types fr , you should filter the list so that usernames starting with fr are included ( fred and frank in this case).
How would you implement this (data structures and
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- Write a program that coverts a zip code to a bar code. The bar codes use large and small bars. We will use : as a small bar and | as a large bar. Each digit has its own bar pattern. 1 is :::|| 2 is ::|:| 3 is ::||: 4 is :|::| 5 is :|:|: 6 is :||:: 7 is |:::| 8 is |::|: 9 is |:|:: 0 is ||::: The barcode also includes a check digit. The final digit added to the bar code verifies the previous numbers are correct. To Determine the checksum: Add all the digits together Determine what needs to be added to make the total a multiple of 10 The bar code also always starts and ends with a large bar. This is used by the scanner to align the letter. Drexel's Zip Code is 19104 The check digit is 5. The sum of the digits is 1+9+1+0+4 = 15. To make 15 a multiple of 10, we need to add 5. The bar code will be |:::|||:|:::::||||::::|::|:|:|:| The majority of work in this problem is done by digit. It makes sense to store the zip code as a string, not as an integer. Write the function checksum(zip)…Write a program that coverts a zip code to a bar code. The bar codes use large and small bars. We will use : as a small bar and | as a large bar. Each digit has its own bar pattern. 1 is :::|| 2 is ::|:| 3 is ::||: 4 is :|::| 5 is :|:|: 6 is :||:: 7 is |:::| 8 is |::|: 9 is |:|:: 0 is ||::: The barcode also includes a check digit. The final digit added to the bar code verifies the previous numbers are correct. To Determine the checksum: Add all the digits together Determine what needs to be added to make the total a multiple of 10 The bar code also always starts and ends with a large bar. This is used by the scanner to align the letter. Drexel's Zip Code is 19104 The check digit is 5. The sum of the digits is 1+9+1+0+4 = 15. To make 15 a multiple of 10, we need to add 5. The bar code will be |:::|||:|:::::||||::::|::|:|:|:| The majority of work in this problem is done by digit. It makes sense to store the zip code as a string, not as an integer. Write the function checksum(zip)…Write a client-server java application in which two clients can send a Morse-code message to each other through a multithreaded server application. The client application should allow the user to type English-language when the user sends the message, the client application encoded the text into Morse-code and sends the coded message through the server to the client. use one blank between each Morse-code letter and three blanks between each Morse-coded word. Note: At the server side, use Map<String, Character> for the mapping between the Morse code and its corresponding normal character in java
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- After the pandemic, you decide to open a fast-food restaurant. Since this is a start-up business, you onlyfocus on selling one meal: burger and fries. After a couple of days of observation, you found that youneed to have at least one chef for making the burger and one chef for making fries for servingcustomers. In this assignment, you need to simulate this restaurant using the Java thread you learn inthe class. In the restaurant, you have one burger chef, one fries chef, and one waitress. In this simulation, theburger chef can produce a burger every 3 seconds, and the fries chef can produce a set of fries every 2seconds.There is a kitchen table between the two chefs. The table is used to temporarily place the burgers orfries. Since the table has a limited size, it only allows having a maximum of 5 burgers and 5 sets of fries(total 10 food items here). For example, If the table has 5 burgers, the burger chef should start waitinguntil the table has a free space. Next, If the kitchen…Using the draw.io site or a flowcharting tool of your choice, create a flowchart that models a complete Java program called StringSlicer that uses methods to: Get a String from the user at the command line Populate an ArrayList of Character data (the wrapper class), with each char in the String represented as a separate Character element in the ArrayList Output each Character to the command line, each on a separate lineIn Java ,write a program that will act like an Bank Management app. In order to access the app, the customer must enter their user name and their passcode. After 3 incorrect attempts at entering the user name and password, the program will end. The list of legitimate users along with their user ID, passcode and account balance will be provided to you. There are only 5 functions that can be carried out by the app: 1 - Deposit (adding money to the account) 2 - Withdrawal (removing money from the account) 3 - Balance Inquiry (check current balance) 4 - Transfer Balance (transfer balance from one account to another) 5 - Log Out (exits/ends the program) Note: No need for GUI
- Consider a poorly built web application for an online shopping site that saves the price of each item as a hidden form variable in the web page given to the consumer. What is the flaw in this plan? (In one case, clients of an online retailer took advantage of the flaw before it was rectified.)assignment is to write a program that helps an interactive user search for “near misses” of the form (x, y, z, n, k) in the formula xn + yn = zn, where x, y, z, n, k are positive integers, where 2< n <12, where 10 <= x <= k, and where 10 <= y <= k. When your program starts, it should ask the user for n (the power to use in the equation) and ask the user of k (which limits the range of x and y possibilities to test). For now I am not limiting k, except to say that it should be > 10. You may want to impose an upper limit on k if you find that your program is crashing due to overflowing integer variables, but don’t make it TOO small, or you will limit the kinds of near misses you can find. Your program should then look for “near misses” of the form xn + yn <> zn. A “near miss” is a RELATIVELY small difference between (xn + yn) and znfor some integers x, y, and z. Your program should systematically search for x, y, and z combinations that are “almost right.” NOTE…In this task you are asked to construct a table showing the sequence of numbersfrom 0 to a maximum value as specified by the user. Within the table, if the number in the cell is a highlighted (e.g., blue in thescreenshot below) when it is divisible by a number that is also specifiedbytheuser, known as the divisor. For example, the user could input for the maximumavalue of 100 and for the divisor a value of 23; this should result in the cellscontaining the values: 0, 23, 46, 69 and 92; being highlighted.