Here you can find the source of readLine()
public static void readLine()
//package com.java2s; /**//from w w w . ja va 2s. c o m * Copyright (c) 2002-2011 "Neo Technology," * Network Engine for Objects in Lund AB [http://neotechnology.com] * * This file is part of Neo4j. * * Neo4j is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static void readLine() { try { new BufferedReader(new InputStreamReader(System.in)).readLine(); } catch (IOException e) { throw new RuntimeException(e); } } }