What exactly is a collection (also known as a container instance)?
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Q: Computer science What is a collection (a container instance)?
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What exactly is a collection (also known as a container instance)?
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- Classes, Objects, Pointers and Dynamic Memory Program Description: This assignment you will need to create your own string class. For the name of the class, use your initials from your name. The MYString objects will hold a cstring and allow it to be used and changed. We will be changing this class over the next couple programs, to be adding more features to it (and correcting some problems that the program has in this simple version). Your MYString class needs to be written using the .h and .cpp format. Inside the class we will have the following data members: Member Data Description char * str pointer to dynamic memory for storing the string int cap size of the memory that is available to be used(start with 20 char's and then double it whenever this is not enough) int end index of the end of the string (the '\0' char) The class will store the string in dynamic memory that is pointed to with the pointer. When you first create an MYString object you should…Background Often, data are stored in a very compact but not human-friendly way. Think of how dishes in a menu can be stored in a restaurant database somewhere in the cloud. One way a dish object can be stored is this: { "name": "Margherita", "calories": 800, "price": 18.90, "is_vegetarian": "yes", "spicy_level": 2 } Obviously, this format is not user-readable, so the restaurant's frontend team produced many lines of code to render and display this content in a way that's more understandable to us, the restaurant users. We have a mini-version of the same task coming up. Given a list of similar complex objects (represented by Python dictionaries), display them in a user-friendly way that we'll define in these instructions. What is a "dish"? In this project, one dish item is a dictionary object that is guaranteed to have the following keys: "name": a string that stores the dish's name. "calories": an integer representing the calorie intake for one serving of the dish. "price": a float to…gui ava - explain what this lone of code means void overrideProgramParameters (Map<String, String> clientParameters, ValueBean valueBean) ;
- Java Objects and Linked Data: Select all of the following statements that are true. The Java Class Library's class ArrayList implements the LinkedList interface. In Java, when one reference variable is assigned to another reference variable, both references then refer to the same object. In Java, the "equals"-method that any object inherits can be overwritten to compare objects field by field.A Java collection is any class that implements the Collection interface. O True FalseTRUE OR FALSE In order to use static methods in Collections, we must create a Collection object using a new operator.
- Sequential Containers Sequential containers are distinguished by the operations defined for them, which are either generic or restricted. Restricted operations, such as appending at the end of a container, have constant runtimes. That is, the runtime is proportional to a fixed period of time and does not depend on the number of objects in the container. The following are examples of sequential containers: Queues, which are managed on the First-In-First-Out principle. The first element to be inserted is also removed Stacks, which are managed on the Last-In-First-Out principle. The last element to be inserted is removed Vectors, which are basically a flexible-size array that supports fast random Thus, in this programming assignment, you are going to create a general Vector class without using the utilities of the standard vector class and the template feature of C++. The design should let its users to use a vector of integers or characters. You should review the standard vector…Written in Python It should have an init method that takes two values and uses them to initialize the data members. It should have a get_age method. Docstrings for modules, functions, classes, and methodsSets and Maps A map is a container object that stores a collection of key/value pairs. It enables fast retrieval, deletion, and updating of the pair through the key. A map stores the values along with the keys. The keys are like indexes. In List, the indexes are integers. In Map, the keys can be any objects. A map cannot contain duplicate keys. Each key maps to one value. A key and its corresponding value form an entry stored in a map. There are three types of maps: HashMap, LinkedHashMap, and TreeMap. The common features of these maps are defined in the Map interface. 1.1 Using the Map interface knowledge, create a Java application in NetBeans that implements a HashMap and a LinkedHashMap. The application must do the following: a. Add at least 5 elements to the HashMap b. Print out all the elements in the HashMap including their keys c. Find and print out the value of a specific index d. Remove one of the elements from the HashMap e. Print out the HashMap after removing the element f.…
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