Convert Byte array to Int : Byte Array « File « Java Tutorial






/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 *
 */

public final class BytesHelper {

  private BytesHelper() {}

  public static int toInt( byte[] bytes ) {
    int result = 0;
    for (int i=0; i<4; i++) {
      result = ( result << 8 ) - Byte.MIN_VALUE + (int) bytes[i];
    }
    return result;
  }
  
}








11.77.Byte Array
11.77.1.Load file to byte array
11.77.2.Load File as byte array
11.77.3.Convert Byte array to Int
11.77.4.Gets an array of bytes corresponding to the given object
11.77.5.Convert byte array to string
11.77.6.An optimized reader for reading byte streams that only contain 7-bit ASCII characters.
11.77.7.Convert a base16 string into a byte array.
11.77.8.Convert a byte array to a human-readable String for debugging purposes.
11.77.9.Convert the bytes within the specified range of the given byte array into a String
11.77.10.Convert the bytes within the specified range of the given byte array into a signed integer in the given radix
11.77.11.Converts a byte array into a hexadecimal string
11.77.12.Converts a byte array into hexadecimal characters which are written as ASCII to the given output stream.
11.77.13.Decode hex string to a byte array
11.77.14.Encode a byte array to hex string
11.77.15.Get bytes from InputStream
11.77.16.Read and return the entire contents of the supplied file.
11.77.17.Reads bytes available from one InputStream and returns these bytes in a byte array.
11.77.18.Return the specified class. Checks the ThreadContext classloader first, then uses the System classloader.
11.77.19.Translates between byte arrays and strings of "0"s and "1"s.