待解：一元非运算符

 1 // Demonstrate the bitwise NOT.
 2 class NotDemo {
 3     public static void main(String[] args) {
 4         byte b = -34;
 5         
 6         for(int t = 128; t > 0; t = t/2) {
 7             if((b & t) != 0) System.out.print("1 ");
 8             else System.out.print("0 ");
 9         }
10         System.out.println();
11         
12         // reverse all bits
13         b = (byte) ~b;
14         
15         for(int t = 128; t > 0; t = t/2) {
16             if((b & t) != 0) System.out.print("1 ");
17             else System.out.print("0 ");
18         }
19     }
20 }