Here you can find the source of toMap(String[] keyNames, T[] values)
public static <T> Map<String, T> toMap(String[] keyNames, T[] values)
//package com.java2s; /**/*w ww .j a v a2s .c o m*/ * Licensed to JumpMind Inc under one or more contributor * license agreements. See the NOTICE file distributed * with this work for additional information regarding * copyright ownership. JumpMind Inc licenses this file * to you under the GNU General Public License, version 3.0 (GPLv3) * (the "License"); you may not use this file except in compliance * with the License. * * You should have received a copy of the GNU General Public License, * version 3.0 (GPLv3) along with this library; if not, see * <http://www.gnu.org/licenses/>. * * 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. */ import java.util.HashMap; import java.util.Map; public class Main { public static <T> Map<String, T> toMap(String[] keyNames, T[] values) { if (values != null && keyNames != null && values.length >= keyNames.length) { Map<String, T> map = new HashMap<String, T>(keyNames.length); for (int i = 0; i < keyNames.length; i++) { map.put(keyNames[i], values[i]); } return map; } else { return new HashMap<String, T>(0); } } }