Java Integer Create toIntegerObject(boolean bool)

Description

Converts a boolean to an Integer using the convention that zero is false.

 BooleanUtils.toIntegerObject(true)  = new Integer(1) BooleanUtils.toIntegerObject(false) = new Integer(0) 

License

Apache License

Parameter

Parameter	Description
bool	the boolean to convert

Return

one if true, zero if false

Declaration

public static Integer toIntegerObject(boolean bool) 

Method Source Code

//package com.java2s;
/*//w w w  .  ja v a 2s. c  o m
   $Id: BooleanUtils.java,v 1.3 2004-01-28 15:10:40 mvdb Exp $
       
   Copyright 2002-2004 The Xulux Project
    
   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 {
    /** Reusable Integer constant for zero. */
    public static final Integer INTEGER_ZERO = new Integer(0);
    /** Reusable Integer constant for one. */
    public static final Integer INTEGER_ONE = new Integer(1);

    /**
     * <p>Converts a boolean to an Integer using the convention that
     * <code>zero</code> is <code>false</code>.</p>
     *
     * <pre>
     *   BooleanUtils.toIntegerObject(true)  = new Integer(1)
     *   BooleanUtils.toIntegerObject(false) = new Integer(0)
     * </pre>
     *
     * @param bool  the boolean to convert
     * @return one if <code>true</code>, zero if <code>false</code>
     */
    public static Integer toIntegerObject(boolean bool) {
        return (bool ? INTEGER_ONE : INTEGER_ZERO);
    }

    /**
     * <p>Converts a Boolean to a Integer using the convention that
     * <code>zero</code> is <code>false</code>.</p>
     *
     * <p><code>null</code> will be converted to <code>null</code>.</p>
     *
     * <pre>
     *   BooleanUtils.toIntegerObject(Boolean.TRUE)  = new Integer(1)
     *   BooleanUtils.toIntegerObject(Boolean.FALSE) = new Integer(0)
     * </pre>
     *
     * @param bool  the Boolean to convert
     * @return one if Boolean.TRUE, zero if Boolean.FALSE, <code>null</code> if <code>null</code>
     */
    public static Integer toIntegerObject(Boolean bool) {
        if (bool == null) {
            return null;
        }
        return (bool.booleanValue() ? INTEGER_ONE : INTEGER_ZERO);
    }

    /**
     * <p>Converts a boolean to an Integer specifying the conversion values.</p>
     *
     * <pre>
     *   BooleanUtils.toIntegerObject(true, new Integer(1), new Integer(0))  = new Integer(1)
     *   BooleanUtils.toIntegerObject(false, new Integer(1), new Integer(0)) = new Integer(0)
     * </pre>
     *
     * @param bool  the to convert
     * @param trueValue  the value to return if <code>true</code>,
     *  may be <code>null</code>
     * @param falseValue  the value to return if <code>false</code>,
     *  may be <code>null</code>
     * @return the appropriate value
     */
    public static Integer toIntegerObject(boolean bool, Integer trueValue, Integer falseValue) {
        return (bool ? trueValue : falseValue);
    }

    /**
     * <p>Converts a Boolean to an Integer specifying the conversion values.</p>
     *
     * <pre>
     *   BooleanUtils.toIntegerObject(Boolean.TRUE, new Integer(1), new Integer(0), new Integer(2))  = new Integer(1)
     *   BooleanUtils.toIntegerObject(Boolean.FALSE, new Integer(1), new Integer(0), new Integer(2)) = new Integer(0)
     *   BooleanUtils.toIntegerObject(null, new Integer(1), new Integer(0), new Integer(2))          = new Integer(2)
     * </pre>
     *
     * @param bool  the Boolean to convert
     * @param trueValue  the value to return if <code>true</code>,
     *  may be <code>null</code>
     * @param falseValue  the value to return if <code>false</code>,
     *  may be <code>null</code>
     * @param nullValue  the value to return if <code>null</code>,
     *  may be <code>null</code>
     * @return the appropriate value
     */
    public static Integer toIntegerObject(Boolean bool, Integer trueValue, Integer falseValue, Integer nullValue) {
        if (bool == null) {
            return nullValue;
        }
        return (bool.booleanValue() ? trueValue : falseValue);
    }
}

Related

1. toIntegerArray(final int[] ints)
2. toIntegerArray(String text, String delimiter)
3. toIntegerArray(String... values)
4. toIntegerByObject(Object obj)
5. toIntegerFromObj(Object obj)
6. toIntegerObject(Boolean bool, Integer trueValue, Integer falseValue, Integer nullValue)
7. toIntegerOrNull(String s)
8. toIntegers(String[] values)
9. toIntegerValue(byte... bytes)