set Bit By Position on byte - Java java.lang

Java examples for java.lang:byte Array Bit Operation

  1. HOME
  2. Java
  3. java.lang
  4. byte Array Bit Operation

Description

set Bit By Position on byte

Demo Code

/*//  www . j a va 2  s  . co m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        byte byt = 2;
        boolean bool = true;
        int pos = 2;
        System.out.println(setBitByPos(byt, bool, pos));
    }

    private static final int[] mask = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20,
            0x40, 0x80 };
    private static final int[] invMask = { 0xFE, 0xFD, 0xFB, 0xF7, 0xEF,
            0xDF, 0xBF, 0x7F };

    public static byte setBitByPos(byte byt, boolean bool, int pos) {
        if (bool) {
            return (byte) ((int) byt | mask[pos]);
        } else {
            return (byte) ((int) byt & invMask[pos]);
        }
    }
}

Related Tutorials