Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (c) 2016 Aalto University
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.util.Log;

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

public class Main {
    private final static String TAG_CLASS = "OTUtils.class";

    /**
     * read one file and return its content as string
     * @param fileName
     * @return
     * @throws FileNotFoundException
     */
    public static String readFileToString(String fileName) throws FileNotFoundException {
        File file = new File(fileName);
        if (file.exists()) {
            StringBuilder stringBuilder = new StringBuilder((int) file.length());
            Scanner scanner = new Scanner(file, "UTF-8");
            String lineSeparator = System.getProperty("line.separator");

            while (scanner.hasNextLine()) {
                stringBuilder.append(scanner.nextLine() + lineSeparator);
            }

            scanner.close();
            return stringBuilder.toString();
        }

        Log.e(TAG_CLASS, "no file called: " + fileName);
        return null;
    }
}