***in java***

just need an idea of how to do this, as i am stuck on it

PinballMachineTargets.txt

Play.txt

Assignment Description This assignment provides more practice creating and manipulating classes as well as the opportunity to use Java's Comparable interface. For this assignment, create a program that simulates a Pinball Machine. Here are some terms related to pinball and their meaning for this assignment. See the document PinballTargets.docx for a visual. Playing Field The flat surface of the game on which targets are arranged. The ball rolls along this surface hitting the targets giving the player points. Target The targets we will use are bumpers, kickers, rollovers, and flippers. When the ball comes in contact with a bumper, kicker, or rollover points are added to the overall score. Hit When the ball comes in contact with a target. The pinball machine will contain a playing field of targets. The size of the playing field, is specified in the Pinball Machine Targets.txt file. To setup the pinball machine's playing field, read the number of rows and number of columns from the file and create a Pinball Machine object that contains a playing field (2D array) based on these values. Next, for each target in the file, read its details, create the target, and place the target into playing field at its specified row and column. Note, not all locations in the pinball machine's playing field will contain a target. For example, in the test file shown below, in row 0 columns 0, 1, 3 and 4 are empty, in row 1 columns 0, 2, and 4 are empty, rows 2-6 also contain empty columns. After all targets are placed into the pinball machine's playing field, display the pinball machine, play a game, and print a report. In the report, targets must be displayed in order from the one with the most hits to the lowest hits. See output below. Specifications 1. Create a Java class called LastNameFirstName Assignment 2. Follow "CS1450 Programming Assignments Policy" 3. Write a test program (i.e. main) to do the following: Step 1: Create a pinball machine object Contains a playing field (2D array) with the number of rows & columns read from file. Step 2: Load pinball machine with all targets in file For each target in the file: o Read details for the target from the file. o Create a target object using the details. o Add target to pinball machine's playing field in row & column specified in file o Use the addTarget To Playing Field method in the Pinball Machine class Step 3: Display the loaded pinball machine. Display a nicely formatted version of the pinball machine's playing field Use display Playing Field() method in Pinball Machine class (see 1' output example) Step 4: Play a game. Write a method to play a game: public static void play(Pinball Machine pinball Machine) throws IOException This method must: Be placed in your Assignment4 class Play.txt file simulates one game. This file provides different locations of the ball on playing field during the game. See #4 below for file details. . For each location in the file, determine if a target was hit. This means: if there is a target in the location, then a hit occurred. When a target is hit, increment target's hits, update the score with points from this target, then print the target's type, id, points, and the current score at that point in game (see 2 output example) Step 5: Print a report for the pinball machine. Write a method to print the report: public static void printReport (PinballMachine pinballMachine) This method must: Be placed in your Assignment4 class Create one TargetReport for each target and place all reports into an ArrayList Sort all TargetReports in ArrayList using the Collections.sort() method Print all TargetReports in ArrayList (which are now sorted by number of hits) o Use the print() method on TargetReport (see 3 output example) 4. Test file information (PinballMachine Targets.txt and Play.txt) a. Setup the pinball machine using the file Pinball Machine Targets.txt This file is an example so DO NOT assume that your code should only work for a playing field with 7 rows and 5 columns and/or these targets in this specific order. The grader file will be different. #of rows in playing field (array row index) of columns in playing Details for each Note - Row 0: field (array column index) 02 Bumper 1 100 1 1 Bumper 2 100 1 3 Bumper 3 100 target 20 Kicker 1 10 2 2 Rollover 1 10 24 Kicker 2 10 3 1 Rollover 2 50 3 3 Rollover 3 50 columns 0, 1, 3, 4, are empty 42 Rollover 4 10 columns 0, 2, 4 are empty 50 Rollover 5 50 columns 1 & 3 are empty 5 1 Flipper 10 columns 0, 2, 4 are empty 53 Flipper 20 columns 0, 1, 3, 4 are empty 54 Rollover 6 50 columns 2 is empty - Row 1: - Row 2: - Row 3: - Row 4: - Row 5: - Row 6: all columns are empty i. 1" line is the number of rows in the pinball machine's playing field ii. 2 line is the number of columns in the pinball machine's playing field iii. Remaining lines contain details for each target. The format is as follows: Row# Column# Type Id Points 0 1 Bumper 1 100 b. Simulate playing a game (a ball rolling around) using the Play.txt file. This file is an example so DO NOT assume that your code should only work for the rows and columns specified in the file or the rows and columns in this specific order. The grader file will be different. Row# Column# 04 Classes Remember, build as much of the classes as possible before you start writing the code in main. PinballMachine Class Description o Represents the pinball machine. o Pinball machine contains one playing field that is modeled by a 2-dimensional array. . In the test file, the playing field has 7 rows (0-6) and 5 columns (0-4). Column 1 Column 1 Column 2 Column 3 Column 4 Row 0 - Bumper Row 1 - Bumper Bumper Row 2 Kicker Rollover - Kicker Row 3 - Rollover Rollover Row 4 - Rollover Row 5 Rollover Flipper - Flipper Rollover Row 6 Private Data Fields o number Rows - number of rows in the playing field (i.e. row index) o numberColumns - number of columns in the playing field (i.e. column index) o playing Field - array of Target objects (HAS-A relationship) use a 2D array NOT ArrayList see FAQ for help with 2D arrays Public Methods o Constructor: public Pinball Machine (int numberRows, int numberColumns) Initializes numberRows and numberColumns to incoming values Initializes size of playing field (2D array) to numberRows and numberColumns playingField = new Target[numberRows][numberColumns); o Getters: For data fields number Rows and numberColumns o Setters: None o addTarget To Playing Field (int row, int column, Target target) Places incoming target object in 2D array at a specified location (row/column) o getTarget (int row, int column) Returns the target stored in the playing field (2D array) at specific row/column . If no target in row/column location (i.e. empty array location), returns null o display Playing Field Displays nicely formatted version of pinball machine's playing field (2D array) Print row #, column #, and target type (see 1" example output below) Target Class Description o Represents one target Private Data Fields o type-string value for the targets type (bumper, kicker, rollover, flipper) o id - integer value for the targets unique id o points - integer value for the # of points this target is worth when it is hit by the ball o hits - integer value for the number of times this target is hit during play Public Methods o Constructor public Target (String type, int id, int points) initializes all private data fields with incoming values o Getter: One for each private data field o Setters: None o increment Hits ( Updates the value stored in hits by one TargetReport Class Description o Represents the report for one target. o Class must implement Comparable Private Data Fields o row Number - row #target is stored in i.e. array row index) o column Number - column #target is stored in i.e. array column index) o type-string value for the target's type (bumper, flipper, etc.) o id - integer value for the target's unique id o points - integer value for the # of points this target is worth when hit by the ball o hits - integer value for the number of times this target is hit during play Public Methods o Constructor public TargetRecord (int row Number, int column Number, String type, int id, int points, int hits) initializes all private data fields with incoming values o Getters and Setter: None o public String printo returns string with row#, column#, type, id, points, and hits o public int compare To(TargetReport otherReport) - overrides method in Comparable . returns integer value (-1, 0, 1) based on result of comparing two target reports Compares two target reports based on the number of hits Mut Do and Tips Must Do Use a regular 2D array to model the pinball machine's playing field (see FAQ on 2D arrays) Use an ArrayList to store target reports Use Java's pre-defined Comparable interface. Do not create your own Comparable interface! Tip: Reading Targets from File The number of targets is not part of the file as on previous assignments. On this assignment, use a while loop that reads until the end of the file is reached using the scanner's hasNext method. Tip: Rows and Columns . Not all locations in the pinball machine's playing field contain a target. Empty locations in the array contain the value null Tip: TargetReport Sorting and Comparable In printReport method (step 5 above), use the sort method on the Collections class. Here's how this works: o Because TargetReport implements Comparable, the class must contain a compare To method. The compare To compares two reports based on the number of hits. o The connection to Collections.sort() method: Collections.sort uses an object's compare To method to compare and sort objects! By sending the ArrayList of TargetReports to Collections.sort(), the ArrayList will be sorted based on target hits. o See Listing 13.9 p. 515 in Liang for compare To example Tip: Build the Classes First and Code Incrementally Create as much of each class before you write the code in main. Next get the code working in bits. Make sure you can read all the data from the file correctly, then create the target objects, etc. Tip: General One way to return nicely formatted strings in the TargetReport print methods is to use the string format method. For example: return String.format("%d\t%d\t%-10s\t%-1d\t%-4d\t%-4d", rowNumber, columnNumber, type, number, points, hits); See chapter 4 in the Liang book for details on format specifiers Output Your output will look like the following when running test file PinballMachine Targets.txt and Play.txt Set up targets in pinball machine... Column 0 Column 4 Column 1 Column 2 Column 3 Row 0 ---- Bumper Bumper Rollover Row 1 ------- Bumper ------- Row 2 Kicker Kicker Row 3 ------- Rollover Rollover ------- Row 4 ------- Rollover ------ Flipper ------- Flipper Row 5 Rollover Rollover Row 6 ------- ------ ------- Dashes represent an empty location playing field Simulate Pinball Game ------------------ -------- ---------- Target Hit ID Points Score ------------------- 100 100 100 10 50 10 Bumper 1 Bumper 3 Bumper Kicker 2 Rollover 3 Rollover 4 Flipper 1 Rollover 4 Bumper 3 Rollover 1 Rollover 2 Rollover 5 0 100 200 300 310 360 370 370 380 480 490 540 590 10 100 10 50 50 Produced report Using print method on TargetReport ********************************************** ********* ************ ****** PINBALL MACHINE TARGET HIT REPORT (From Most Hits to Least Hits) ********************************************** ************************** Number Row Points Column Type Number Hits 1 4 O 1 2 2 3 3 5 5 3 2 2 1 2 4 1 3 0 1 Bumper Rollover Bumper Bumper Rollover Kicker Rollover Rollover Rollover Flipper Kicker Flipper Rollover 3 4 1 2 1 2 2 3 5 1 1 2 6 100 10 100 100 10 10 50 50 50 0 10 0 50 5 5 3 4 0 2 Bumper 1 100 1 1 Bumper 2 100 1 3 Bumper 3 100 2 0 Kicker 1 10 2 2 Rollover 1 10 2 4 Kicker 2 10 3 1 Rollover 2 50 3 3 Rollover 3 50 4 2 Rollover 4 10 5 O Rollover 5 50 5 1 Flipper 1 0 5 3 Flipper 20 5 4 Rollover 650 OOOPNWWNNENWAWNNWNW