Java Double Number Create toDouble(byte[] arr)

Description

to Double

License

Apache License

Declaration

public static double toDouble(byte[] arr) 

Method Source Code

//package com.java2s;
/**//from www .j a v a  2 s  .c o  m
 * Copyright 2005 The Apache Software Foundation
 *
 * 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 double toDouble(byte[] arr) {
        return Double.longBitsToDouble(toLong(arr));
    }

    public static long toLong(byte[] arr) {
        int high = (arr[0] << 24) | ((arr[1] & 0xff) << 16)
                | ((arr[2] & 0xff) << 8) | (arr[3] & 0xff);
        int low = (arr[4] << 24) | ((arr[5] & 0xff) << 16)
                | ((arr[6] & 0xff) << 8) | (arr[7] & 0xff);
        return (((long) high) << 32) | (low & 0x0ffffffffL);
    }
}

Related

1. toDouble(byte[] b)
2. toDouble(byte[] byteArray)
3. toDouble(byte[] bytes)
4. toDouble(byte[] bytes)