Java Byte to Int byteToOffset(int value)

Description

byte To Offset

License

Apache License

Declaration

public static int byteToOffset(int value) 

Method Source Code

//package com.java2s;
/* Copyright 2013 Jukka Pirinen
    /*from w w w.  ja va2  s  . c o m*/
   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 int byteToOffset(int value) {
        if (value < 0 || value > 255) {
            throw new IllegalArgumentException("Value must be between 0 and 255 inclusive");
        }
        if ((value & 0x80) == 0) {
            return value;
        }
        return -(256 - value);
    }
}

Related

1. byteToInt(int b)
2. byteToInteger(final byte b)
3. byteToInteger(final byte value)
4. byteToNum(byte bByte)
5. byteToNumString(byte b)
6. byteToPositiveInt(byte inByte)
7. ubyte2int(byte in)
8. ubyte2int(final byte x)