Make a class that represents a file. This class will have the ability to calculate the number of lines in that file and the ability to search through the file. The getNumMatchingWords method will take a bit of text and determine how many lines contain that text. Make the comparison not care about case. Example: if the user is searching for hello and a line contains the text hello hello hello then this counts as one. Use the contains method defined on Strings to help with this.     Fields - filename : String Methods + FileStats(filename : String) + getNumMatchingWords(key : String) : int + getNumLines() : int   Use test case 1 as result

You have been hired at an open-air mine. You are to write a program to control a digger. For your task, you have been given a `map' of all the underground resources in the mine. This map comes as a file. The file has n rows. Each row has n space-separated integers. Each integer is between zero and one hundred (inclusive). The file should be understood to represent a grid, n wide by n deep. Each square in the grid can contain valuable resources. The value of these resources can go from zero (no resources) to 100 (max resources). The grid maps the resources just below the surface, and down to the lowest diggable depths. The digger starts at the surface (so, just on top of the topmost row in the grid)—at any horizontal position between 1 and n. The digger cannot dig directly downwards, but it can dig diagonally in either direction, left-down, or right-down. In its first time-step, it will dig onto the first row of the grid. In its second time-step, it'll hit the second row, and so on.…

Ask the user for a filename. Display the oldest car for every manufacturer from that file. If two cars have the same year, compare based on the VIN. i am having trouble getting my code to work I have this code: import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Scanner; class Car { String manufacturer; String model; int year; String vin; public Car(String manufacturer, String model, int year, String vin) { this.manufacturer = manufacturer; this.model = model; this.year = year; this.vin = vin; } public String getManufacturer() { return manufacturer; } public void setManufacturer(String manufacturer) { this.manufacturer = manufacturer; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public String getVin() { return vin; } public void setVin(String vin) { this.vin = vin; } } public class Demo {…

>> classicVinyls.cpp For the following program, you will use the text file called “vinyls.txt” attached to this assignment. The file stores information about a collection of classic vinyls. The records in the file are like the ones on the following sample: Led_Zeppelin                 Led_Zeppelin                 1969                                          1000.00 The_Prettiest_Star          David_Bowie                  1973                                          2000.00 Speedway                      Elvis_Presley                   1968                                          5000.00 Spirit_in_the_Night        Bruce_Springsteen         1973                                          5000.00 …   Write a declaration for a structure named vinylRec that is to be used to store the records for the classic collection system. The fields in the record should include a title (string), an artist (string), the yearReleased (int), and an estimatedPrice(double). Create the following…