ou are tasked with managing an inventory of products in a retail store. The inventory contains various products, each with a name(key) and price(value). Use dictionary to create the inventory. Write a Python program to find the total value of products that strictly exceed a certain threshold value. Further, display the name of products whose price is less than or equal to the threshold value (Each product name should be printed in a separate line). Develop code by using user-defined function whose argument is a dictionary. DO NOT USE BUILT-IN FUNCTIONS IN CALCULATING THE RESULTS.Accept the number of products in the inventory from user, say N.Read product name and value from user for N number of products.Read threshold value from user.Print the total value of products above threshold.Sample input:

ntory. Write a Python program to find the total value of products that strictly exceed a certain threshold value. Further, display the name of products whose price is less than or equal to

Hari is working for a retail company and has sales data in the form of a list of dictionaries, where each dictionary represents a sale with information about the productname, price, count and date. Help him to use dictionaries by writing a Python program using strings and user-defined functions to analyze sales data. The analysis should include the calculation of total sales revenue for a specific date and finding the best-selling product.Input format:First line represents the number of products, N.Subsequent lines represent productname, price, count and date.Last line represents the date for which the list of products sold on that particular date have to be fetched from the database. Output format:productname of all products which are sold on a particular date (as mentioned in the last line of input) should be displayed, one by one.Last line displays the details of the best-selling product (which is having the highest of price*count).

Write a program to enter the names of books and their prices as inputs in a Dictionary. Perform the following operations for the purchase of the books by the customer.·       Add more details of books to the dictionary·       For books priced above 1000-2999 provides a discount of 5%·       For books that are priced above 3000- 5000 provide a discount of 3% on the purchase·       For books above 5000 provides a discount of 2%.·       Books priced below 500 no discount is provided.Input format :The input consists of the book name and price.Then the choice (1 to enter more and 0 to stop).Output format :The output prints the initial and the final dictionary based on the conditions.Refer sample input and output for the formatting specifications.Sample test cases :Input 1 :Applies Stat25001Neural Networks60000Output 1 :[('Applies Stat', 2500), ('Data science Python projects', 300), ('Handbook Statistics', 18000), ('Hands on data science', 1160), ('Machine Learning', 4000), ('Neural Networks', 6000), ('Python and R', 7215)][('Applies Stat', 2375.0), ('Data science Python projects', 300), ('Handbook Statistics', 17640.0), ('Hands on data science', 1102.0), ('Machine Learning', 3880.0), ('Neural Networks', 5880.0), ('Python and R', 7070.7)]Input 2 :Applies Stat25001Neural Networks60001Artificial Intelligence52001Computer Networks25000Output 2 :[('Applies Stat', 2500), ('Artificial Intelligence', 5200), ('Computer Networks', 2500), ('Data science Python projects', 300), ('Handbook Statistics', 18000), ('Hands on data science', 1160), ('Machine Learning', 4000), ('Neural Networks', 6000), ('Python and R', 7215)][('Applies Stat', 2375.0),

Objective:To work with OperatorsScenario:A new stationary shop has been opened in the city. The owner asks his accountant to take the list of items sold in the store. The list should contain the details of the items and their costs. Help the accountant to generate the prince list by writing a Python program.  Generate list with just 4 products -  A4sheets, pen, pencil and eraser and get the price of the items from the user.  Please refer the sample input and output statements for more clarifications.Guidelines:The amount must be displayed with 2 decimal places. On entering the product price to be a negative number, the program should display the message " Invalid input" and stop the program. Sample Input 1 :Cost of A4sheet:40Cost of pen:20Cost of pencil:10Cost of eraser:5Sample Output 1 :Items DetailsA4sheet:40.00Pen:20.00Pencil:10.00Eraser:5.00Sample Input 2 :Cost of A4sheet:40Cost of pen:20Cost of pencil:10Cost of eraser:-5Sample Output 2 :Invalid inputSample Input 3 :Cost of A4sheet:86Cost of pen:10Cost of pencil:-34Sample Output 3 :Invalid input

Objective: The objective of this activity is to implement a basic inventory management system using Java programming concepts such as user-defined methods, scanner, arrays, loops, and conditions.Task Overview:1. Create a new Java class named `InventorySystem`.2. Declare the following static variables inside the `InventorySystem` class:   - `MAX_ITEMS`: an integer constant to define the maximum number of items in the inventory (set it to 10).   - `items`: a string array to store the names of the items in the inventory (initialize it with the size of `MAX_ITEMS`).   - `quantities`: an integer array to store the quantities of the items in the inventory (initialize it with the size of `MAX_ITEMS`).3. Implement the `main` method inside the `InventorySystem` class:   - Create a `Scanner` object named `scanner` to read user input from the console.   - Use a `while` loop to keep the program running until the user chooses to exit.   - Inside the loop, display a menu of options to the user:     1. Add item to inventory     2. Sell item from inventory     3. Display inventory     4. Exit   - Use a `switch` statement to execute the corresponding action based on the user's choice (1, 2, 3, or 4).   - If the user selects option 1, call the `addItem` method.   - If the user selects option 2, call the `sellItem` method.   - If the user selects option 3, call the `displayInventory` method.   - If the user selects option 4, exit the program.Sample Output 4. Implement the `displayInventory` method:   - Iterate through the `items` and `quantities` arrays and display the name and quantity of each item in the inventory.Sample OutputNote: For other displayInventory functions, check the sample output in the addItem and in the sellItem methods. 5. Implement the `addItem` method:   - Prompt the user to enter the name of the item to be added.   - Check if the item already exists in the inventory by searching for its name in the `items` array.   - If the item does not exist, add it to the list. Automatically it will have value of 1.   - If the item already exists, prompt the user to enter the quantity to be added.   - Update the quantity of the existing item in the `quantities` array.Sample Output6. Implement the `sellItem` method:   - Prompt the user to enter the name of the item to be sold.   - Check if the item exists in the inventory by searching for its name in the `items` array.   - If the item does not exist or if its quantity is 0, display an error message.   - If the item exists and its quantity is greater than 0, prompt the user to enter the quantity to be sold.   - Update the quantity of the sold item in the `quantities` array.Sample Output7. Compile and run the `InventorySystem` class to test the inventory management system.8. Test the system by adding items to the inventory, selling items, and displaying the current inventory.9. When exit is chosen, the program will terminate