Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.BufferedReader;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileReader;
import java.io.IOException;

import java.util.ArrayList;
import java.util.StringTokenizer;

public class Main {
    /**
     * Reads data from specified file.
     * @param path Path to file.
     * @return 2-dimensional array of data.
     */
    public static ArrayList<ArrayList<String>> loadFile(String path) {
        FileReader fr = null;
        String line = "";
        ArrayList<ArrayList<String>> dataArray = new ArrayList<>();

        try {
            fr = new FileReader(path);
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println(e.getMessage());
        }

        BufferedReader br = new BufferedReader(fr);
        ArrayList<String> tokens = new ArrayList<>();

        try {
            while ((line = br.readLine()) != null) {
                tokens = parseLine(line);
                dataArray.add(tokens);
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        try {
            fr.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return dataArray;
    }

    /**
     * Reads data from specified file.
     * @param file A file to read from.
     * @return 2-dimensional array of data.
     */
    public static ArrayList<ArrayList<String>> loadFile(File file) {
        FileReader fr = null;
        String line = "";
        ArrayList<ArrayList<String>> dataArray = new ArrayList<>();

        try {
            fr = new FileReader(file);
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println(e.getMessage());
        }

        BufferedReader br = new BufferedReader(fr);
        ArrayList<String> tokens = new ArrayList<>();

        try {
            while ((line = br.readLine()) != null) {
                tokens = parseLine(line);
                dataArray.add(tokens);
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        try {
            fr.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return dataArray;
    }

    private static ArrayList<String> parseLine(String line) {
        StringTokenizer st = new StringTokenizer(line);
        ArrayList<String> tokens = new ArrayList<>();

        while (st.hasMoreTokens()) {
            tokens.add(st.nextToken());
        }

        return tokens;
    }
}