Java Long to Binary long2binString(long x)

Description

longbin String

License

Apache License

Declaration

public static String long2binString(long x) 

Method Source Code

//package com.java2s;
/*/*from w w w .  ja va  2s  . co m*/
 *  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 {
    public static final String[] hex_digit = { "0", "1", "2", "3", "4",
            "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };

    public static String long2binString(long x) {
        String s = "";
        for (int ii = 0; ii < 64; ii++) {
            if ((ii > 0) && (ii % 4 == 0)) {
                s = " " + s;
            }

            s = hex_digit[(int) ((x & (1L << ii)) >>> ii)] + s;
        }

        return s;
    }
}

Related

1. long2bin(byte[] out, int offset, long i)