Java tutorial
//package com.java2s; /** * Copyright (c) 2011 Loganalysis team and contributors * * 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: * Raffael Schmid - initial API and implementation */ import java.math.BigDecimal; import java.math.RoundingMode; import java.util.List; public class Main { public static BigDecimal avg(final List<BigDecimal> list) { return list.size() > 0 ? sum(list).setScale(10, RoundingMode.HALF_UP).divide(new BigDecimal(list.size()), RoundingMode.HALF_UP) : BigDecimal.ZERO; } public static BigDecimal sum(final List<BigDecimal> list) { BigDecimal total = BigDecimal.ZERO; for (final BigDecimal item : list) { total = total.add(item); } return total; } }