Here you can find the source of sizeOfTreeMap(int size)
public static int sizeOfTreeMap(int size)
//package com.java2s; /*//from w w w . j av a2 s . c om * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static final int POINTER_SIZE = 8; public static final int OBJECT_SIZE = 16; public static final int INT_SIZE = 4; public static final int TREE_MAP_SIZE = OBJECT_SIZE + INT_SIZE * 2 + POINTER_SIZE * 2; public static int sizeOfTreeMap(int size) { return TREE_MAP_SIZE + (OBJECT_SIZE + INT_SIZE + POINTER_SIZE * 5) * size; } }