Question

Write the following Java code for a file called input.txt that has the below text in it.

5 6

1 1 0 0 1 1

0 1 0 0 1 1

0 1 0 0 2 1

0 3 1 1 1 1

1 2 3 4 5 1

2

0 1 hello

2 3 bye

Create the Entry class.

· Entry should have 3 data members

o int x.

o int y.

o String name.

Create a class called Level.

· Level should have a constructor, which takes in a file name.

o It then uses the filename to open the file and read the data.

o It reads in the data into the level class.

· You will probably want methods for toString and maybe accessors.

· The level class has the following:

· A y size and x size for the amount of data.

· A 2d array of map data (integers) (you can use arraylist if you want to instead).

· The number of Entries in a list.

· A list of Entry.

Create the client.

· Create a level object by passing in the filename to the string object.

o You can hardcode the string.

· Print the level to the screen.

· Print the level to a file using the same format (you can hardcode the output file name).

5 6 //this is the y and x size. Y = [number of rows] X = [number of columns per row]

1 1 0 0 1 1 //array

0 1 0 0 1 1

0 1 0 0 2 1

0 3 1 1 1 1

1 2 3 4 5 1

2 //the number of entries in the list below

0 1 hello //first entry in the list

2 3 bye //second entry in the list; there are 2 Entry because “2” was the number of entries

Example run of output to java text window:


5 6

1 1 0 0 1 1

0 1 0 0 1 1

0 1 0 0 2 1

0 3 1 1 1 1

1 2 3 4 5 1

2

0 1 hello

2 3 bye

Example run of code:

6 5

1 1 0 0 1 1

0 1 0 0 1 1

0 1 0 0 2 1

0 3 1 1 1 1

1 2 3 4 5 1

2

0 1 hello

2 3 bye

Answer 1

Here are the complete code

___________________________________________________________________________________________

public class Entry {

    private int x;
    private int y;
    private String name;

    public Entry(int x, int y, String name) {
        this.x = x;
        this.y = y;
        this.name = name;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    public String getName() {
        return name;
    }

    @Override
    public String toString() {
        return x + " " + y + " " + name;
    }
}

____________________________________________________________________________________________

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.ArrayList;

public class Level {

    private int sizeY;
    private int sizeX;
    private int[][] mapData;
    private ArrayList<Entry> entries;

    public Level(String fileName) {
        entries = new ArrayList<Entry>();
        loadData(fileName);
    }

    private void loadData(String fileName) {
        try {
            Scanner scanner = new Scanner(new File(fileName));
            String[] sizes = scanner.nextLine().split("\\s+");

            sizeY = Integer.parseInt(sizes[0]);
            sizeX = Integer.parseInt(sizes[1]);

            mapData = new int[sizeY][sizeX];
            for (int index = 1; index <= sizeY; index++) {
                String[] rowNums = scanner.nextLine().split("\\s+");
                for (int col = 0; col < sizeX; col++) {
                    mapData[index - 1][col] = Integer.parseInt(rowNums[col]);
                }
            }

            int entryCount = Integer.parseInt(scanner.nextLine());

            for (int index = 1; index <= entryCount; index++) {

                String[] entryData = scanner.nextLine().split("\\s+");
                entries.add(new Entry(Integer.parseInt(entryData[0]),
                        Integer.parseInt(entryData[1]), entryData[2]));
            }

            scanner.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }


    public void printLevel() {
        for (int i=0;i<sizeY;i++) {
            for (int j=0;j<sizeX;j++) {
                System.out.print(String.format("%-3d", mapData[i][j]));
            }
            System.out.println();
        }

        for (Entry entry : entries) {
            System.out.println(entry);
        }
    }

    public static void main(String[] args) {
        String fileName = "D:\\abcdef.txt";
        Level level = new Level(fileName);
        level.printLevel();

    }
}