Java Bit Set setBits(int lowBit, int numBits)

Description

Set numBits bits in an integer starting at lowBit and working higher.

License

Open Source License

Declaration

public static final int setBits(int lowBit, int numBits) 

Method Source Code

//package com.java2s;
/*/*  www.  j a  v  a2s.  c om*/
Copyright 2009 Semantic Discovery, Inc. (www.semanticdiscovery.com)
    
This file is part of the Semantic Discovery Toolkit.
    
The Semantic Discovery Toolkit is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
The Semantic Discovery Toolkit 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 The Semantic Discovery Toolkit.  If not, see <http://www.gnu.org/licenses/>.
*/

public class Main {
    /**
     * Set numBits bits in an integer starting at lowBit and working higher.
     */
    public static final int setBits(int lowBit, int numBits) {
        int result = 1;
        for (int i = 0; i < numBits - 1; ++i) {
            result = (result << 1) | 1;
        }
        for (int i = 0; i < lowBit; ++i) {
            result <<= 1;
        }
        return result;
    }
}

Related

1. setBitmapRange(long[] bitmap, int start, int end)
2. setBitmapRangeAndCardinalityChange(long[] bitmap, int start, int end)
3. setBitRange(final int val, final int start, final int len, final int newVal)
4. setBits(byte in, byte data, int position, int fillBits)
5. setBits(final byte value, final int bitMask, final boolean val)
6. setBits(int value, int bits)
7. setBits(long value, long bits)
8. setBitsFromLong(byte[] dst, long dstoff, long l, int off, int len)
9. setBitsInLong(long l, int n, int k, long v)