Here you can find the source of range(int start, int end)
public static int[] range(int start, int end)
//package com.java2s; /******************************************************************************* * Copyright (c) 2010 Oobium, Inc./* w w w .ja va 2 s . c o m*/ * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Jeremy Dowdall <jeremy@oobium.com> - initial API and implementation ******************************************************************************/ public class Main { public static int[] range(int start, int end) { return range(start, end, false); } public static int[] range(int start, int end, boolean exclusive) { int[] range = exclusive ? new int[end - start] : new int[end - start + 1]; for (int i = 0; i < range.length; i++) { range[i] = i + start; } return range; } }