惠玩科技

//位运算符：<<  >>   >>>  | & ~ ^
class TestBit{
     public static void main(String[] args){
         int i1 = 31;
        
         System.out.println(i1<<3);//248
         System.out.println(i1<<28);
        
         System.out.println(i1>>2);//7
         System.out.println(i1>>>2);//7

        int i2 = -31;
         System.out.println(i2>>2);//-8
         System.out.println(i2>>>2);//1073741816
        
         System.out.println(12 & 5);//4
         System.out.println(12 | 5);//13
         System.out.println(12 ^ 5);//9
         System.out.println(~12);//-13

    }
}