Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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 {
    /**
     * <p>Negates the specified boolean.</p>
     *
     * <p>If {@code null} is passed in, {@code null} will be returned.</p>
     *
     * <p>NOTE: This returns null and will throw a NullPointerException if autoboxed to a boolean. </p>
     *
     * <pre>
     *   BooleanUtils.negate(Boolean.TRUE)  = Boolean.FALSE;
     *   BooleanUtils.negate(Boolean.FALSE) = Boolean.TRUE;
     *   BooleanUtils.negate(null)          = null;
     * </pre>
     *
     * @param bool  the Boolean to negate, may be null
     * @return the negated Boolean, or {@code null} if {@code null} input
     */
    public static Boolean negate(Boolean bool) {
        if (bool == null) {
            return null;
        }
        return bool.booleanValue() ? Boolean.FALSE : Boolean.TRUE;
    }
}