Gets the specified bit (0-31) from the integer argument.

     
/***
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 *    the Free Software Foundation; either version 2 of the License, or
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 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
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 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *    
 *    Linking this library statically or dynamically with other modules 
 *    is making a combined work based on this library. Thus, the terms and
 *    conditions of the GNU General Public License cover the whole
 *    combination.
 *    
 *    As a special exception, the copyright holders of this library give 
 *    you permission to link this library with independent modules to 
 *    produce an executable, regardless of the license terms of these 
 *    independent modules, and to copy and distribute the resulting 
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 *
 *    Project: www.simpledbm.org
 *    Author : Dibyendu Majumdar
 *    Email  : d dot majumdar at gmail dot com ignore
 */
//package org.simpledbm.common.util;

/**
 * @author Dibyendu
 * @since 20 Nov 2006
 */
public class BitwiseOperations {

  /**
   * Gets the specified bit (0-31) from the integer argument.
   * 
   * @param x
   *            Integer argument
   * @param p
   *            Position of the bit (0-31)
   */
  static final int getbit(final int x, final int p) {
    // TODO return value should be boolean, not the integer
    return (x & (1 << (31 - p))) == 0 ? 0 : 1;
  }


}

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Gets the specified bit (0-31) from the integer argument. : Binary Bit « Language Basics « Java

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