Here you can find the source of setBit(int bitmask, int bit, boolean enabled)
public static int setBit(int bitmask, int bit, boolean enabled)
//package com.java2s; /******************************************************************************* * Copyright 2010 Simon Mieth/*from w w w . j a va2s .c om*/ * * 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 setBit(int bitmask, int bit, boolean enabled) { if (enabled) { int v = (int) Math.pow(2, bit); return bitmask | v; } else { return bitmask & ~bit; } } }