ParseFile

package utils;

import java.io.*;
import java.util.ArrayList;
import java.util.Objects;
import java.util.Scanner;

public class FileManager {
    private String fileName;

    public FileManager(String fileName) {
        this.fileName = fileName;
    }

    public ArrayList<Double> getDataSetOneDimension() {
        ArrayList<Double> out = new ArrayList<>();
        for (File file : Objects.requireNonNull(new File("C:\\Users\\Marian\\IdeaProjects\\AILab2\\src\\datas").listFiles())) {
            if (file.getName().equals(fileName)) {
                try {
                    FileInputStream fis = new FileInputStream(file);
                    Scanner scan = new Scanner(fis);
                    int length = scan.nextInt();
                    for (int i = 0; i < length; i++) {
                        out.add(scan.nextDouble());
                    }
                } catch (FileNotFoundException e) {
                    System.out.println("File" + file + "not found!");
                }
            }
        }
        return out;
    }

    public ArrayList<Double> getDataSetTwoDimensions() {
        ArrayList<Double> out = new ArrayList<>();
        for (File file : Objects.requireNonNull(new File("C:\\Users\\Marian\\IdeaProjects\\AILab2\\src\\datas").listFiles())) {
            if (file.getName().equals(fileName)) {
                try {
                    FileInputStream fis = new FileInputStream(file);
                    Scanner scan = new Scanner(fis);
                    int length1 = scan.nextInt();
                    int length2 = scan.nextInt();
                    for (int i = 0; i < length1; i++){
                        for (int j = 0; j < length2; j++){
                            out.add(scan.nextDouble());
                        }
                    }
                } catch (FileNotFoundException e) {
                    System.out.println("File" + file + "not found!");
                }
            }
        }
        return out;
    }

    public ArrayList<Double> getDataSetThreeDimensions() {
        ArrayList<Double> out = new ArrayList<>();
        for (File file : Objects.requireNonNull(new File("C:\\Users\\Marian\\IdeaProjects\\AILab2\\src\\datas").listFiles())) {
            if (file.getName().equals(fileName)) {
                try {
                    FileInputStream fis = new FileInputStream(file);
                    Scanner scan = new Scanner(fis);
                    int length1 = scan.nextInt();
                    int length2 = scan.nextInt();
                    int length3 = scan.nextInt();
                    for (int i = 0; i < length1; i++){
                        for (int j = 0; j < length2; j++){
                            for (int x = 0; x < length3; x++){
                                out.add(scan.nextDouble());
                            }
                        }
                    }
                } catch (FileNotFoundException e) {
                    System.out.println("File" + file + "not found!");
                }
            }
        }
        return out;
    }

}