Java Algorithms-Symbols ~

~ Take counter

The non-operator is denoted by the symbol "~", and its Operation law is as follows:

If the bit is 0, the result is 1, if the bit is 1, the result is 0

Let's look at a simple example.

 Public class data15{publicstaticvoid  main (string[] args) {int a=2; System.out.println ("a non-result is:" + (~a));}}

        System.out.println (~);        System.out.println (+);        System.out.println (~-63);        System.out.println (~-23);

Results

-4-66222

You can see the pattern.

When the inverse is calculated 0, and the program considers that 0 is a positive number, so in the calculation of inversion must first add 1 in accordance with the normal understanding of the logic to reverse

If the -63+1 is 62

3+1 to 4

Java Algorithms-Symbols ~