Here you can find the source of toBoolean(Boolean bool, boolean defaultValue)
public static boolean toBoolean(Boolean bool, boolean defaultValue)
//package com.java2s; /**/*from w w w. j a v a2 s .c o m*/ * Copyright 2008-2016 Juho Jeong * * Licensed 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 boolean toBoolean(Boolean bool) { return toBoolean(bool, false); } public static boolean toBoolean(Boolean bool, boolean defaultValue) { if (bool == null) return defaultValue; return bool; } }