Here you can find the source of findPositionFor(final T item, final SortedSet
public static <T extends Comparable<? super T>> int findPositionFor(final T item, final SortedSet<T> values)
//package com.java2s; /*// www. j av a 2s . c o m * #%L * Tesora Inc. * Database Virtualization Engine * %% * Copyright (C) 2011 - 2014 Tesora Inc. * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License, version 3, * as published by the Free Software Foundation. * * 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * #L% */ import java.util.SortedSet; public class Main { public static <T extends Comparable<? super T>> int findPositionFor(final T item, final SortedSet<T> values) { final SortedSet<T> head = values.headSet(item); return head.size(); } }