长值最高有效位

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 * Copyright 2013 EMBL-EBI

 * 

 * 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.

 ******************************************************************************/

//package com.nowjava;


public class Main {
/** from 
n  o  w  j  a  v  a . c o m**/

    public static void main(String[] argv) throws Exception {

        long value = 2;

        System.out.println(mostSignificantBit(value));

    }


    public static int mostSignificantBit(final