Write about the current directory system's container. Note any four container features.
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- What is Relocatable object file ?Using Java, create a personal directory that contains a data structure for first name, last name, email address and phone number. The data structure should be able to contain the information for an unlimited number of people (depending on system resources).• The program interface should consist of a menu that provides the user with ways to (at least):▪ Add: Get data from user and add the data to the structure.▪ View: which will view the current data in the directory ▪ Edit/Update: Edit existing data ▪ Remove: Delete an entry▪ Search: which prompts the user for search criteria (program should be smart enough to know how to tell what kind of data is being searched for. Try to make this as versatile as possible). Display the data if found. If not found add the new information to the data structure (you must provide the right input for this).The program should store the data in a file so that the program can be run whenever the user wants, even after closing.• Your program should:▪ Contain…Plotting linear and quadratic equations Write a program graph.py that prompts a user for three coefficients a, b, and c comma-separated. Next, in the same figure: Plot the linear equation y = ax + b. Plot the quadratic equation y = ax^2 + bx + c. Create a directory named equations in the current working directory and save the figure as graph.png in the directory equations. Your figure should include at least: A title: Linear and quadratic equations. Axis labels: x values and y values A legend: ax + b and ax^2 + bx + c where a, b, and c are the provided coefficients. Grid lines Your plot should cover only all the integers in the closed interval [-10,10] using a linear scale. Sample Output Enter coefficients: 12,6,4 Plot
- Project One (1): Image 2 Imagguil@compute-/private/courses/es2211/W21/assignments/asn3/p. fimagguilecompute projijs ./proji Enter values for Layers, Rows, Columns (elements in each row): 234 Original Matrix Layer 1 (1) 71 72 57 48 49 (2 ) 99 layers 57 ( 3 ) 12 58 57 18 23 prompt Layer 2 (1) se ( 2) 30 (3) 94 77 83 12 99 90 42 84 80 96 row number Enter values for Layers, Rows, Columns (elements in each row): e e e FINISHED (Imagguilecompute projijs (Imagguilecompute projijs Code for generating random integers: int x, m = 100; time_t t; srand ( (unsigned) time (st)); x = (rand () % m) +1; where: time_t is defined in the C library of time.h m is range. In this case 100 signifies the range of 0 to 99, so we add I to the result. (note: m will vary in the second project to match to the matrix size.)Part I Create an interface for a Store application. Provide at least 3 function. Part II Create a type of Store class. Implement the methods introduced in the interface. Note: Do not compress your files, submit only java files. Note: Do not forget to justify your answers with comments.Explain in detail what you consider a file extension to be and what function you think it fulfills. Go to a random folder on your computer and name three file extensions you see there, as well as any software programs that may have produced them. Most file extensions should be shown by simply right-clicking on a chosen file and choosing properties from the pop-up menu (Microsoft Windows environment).
- What additional extended file properties are there except immutable?Course Title : Operating SystemQuestion : How you will create new user using terminal in Ubuntu? Add screenshots of all steps for new user creation including terminal and Login page in Answer sheet. Every student has to create new user as of his/her arid number for example (18-arid-2929). Note: screenshots are mandatory.Scenario: You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLs present in that page, and then recursively fetches new pages using the extracted URLs. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLs or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types.