位运算使用场景

来源：互联网发布：网络小兼职编辑：程序博客网时间：2024/06/06 16:58

package test;public class Test { public static class Info {public static int FLAG_SHABI = 0x0001;public static int FLAG_LAJI = 0x0002;public static int FLAG_ZHAZHA = 0x0004;public int mFlag = 0;public void addFlag(int flag){mFlag |= flag;}public boolean isShabi(int flag){return  (mFlag&FLAG_SHABI) == flag;}public boolean isLaji(int flag){return  (mFlag&FLAG_LAJI) == flag;}public boolean isZhazha(int flag){return  (mFlag&FLAG_ZHAZHA) == flag;}//清楚傻逼这个标识public void clearShabi(){mFlag &= ~ FLAG_SHABI;}}public static void main(String[] args) {Info info = new Info();info.addFlag(Info.FLAG_SHABI);info.addFlag(Info.FLAG_LAJI);info.addFlag(Info.FLAG_ZHAZHA);int a = 0x0001;int b= 0x0002;int c = 0x0004;int d = 0x0008;System.out.println(info.isLaji(a));System.out.println(info.isLaji(b));System.out.println(info.isLaji(c));System.out.println(info.isShabi(a));info.clearShabi();System.out.println("清除傻逼后");System.out.println(info.isShabi(a));System.out.println(info.isLaji(b));System.out.println(info.isZhazha(c));}}

运行结果：

false
true
false
true
清除傻逼后
false
true
true

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