Here you can find the source of getChars(File file)
public static char[] getChars(File file) throws IOException
//package com.java2s; /*/*from w ww . j a v a2 s.c o m*/ * Copyright 2012 Joseph Spencer * * 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 java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; public class Main { public static char[] getChars(File file) throws IOException { String str; FileReader reader = new FileReader(file); BufferedReader buffer = new BufferedReader(reader); String line; StringBuilder result = new StringBuilder(); while ((line = buffer.readLine()) != null) { result.append(line).append("\n"); } str = result.toString(); buffer.close(); reader.close(); return str.toCharArray(); } }