Here you can find the source of toBoolean(Object value, Boolean defaultValue)
public static Boolean toBoolean(Object value, Boolean defaultValue)
//package com.java2s; /**/*from w ww . j a v a 2s .co m*/ * Copyright 2008-2015 Qualogy Solutions B.V. * * 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(Object value, Boolean defaultValue) { return toBoolean(value, null, null, defaultValue); } public static Boolean toBoolean(Object value, String value4True, String value4False, Boolean defaultValue) { if (value instanceof Boolean) { return (Boolean) value; } if (value instanceof String) { if (value.equals(value4True)) { return true; } if (value.equals(value4False)) { return false; } return Boolean.valueOf((String) value); } return defaultValue; } }