Here you can find the source of readLines(File file)
public static List<String> readLines(File file) throws IOException
//package com.java2s; //License from project: Open Source License import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class Main { public static List<String> readLines(File file) throws IOException { List<String> lines = new ArrayList<String>(); BufferedReader br = new BufferedReader(new FileReader(file)); String line;//from ww w .j a v a2s . c o m while ((line = br.readLine()) != null) { lines.add(line); } br.close(); return lines; } }