bitwise & and | in assignment

Asked Mar 06 '15 at 18:13

Active Mar 06 '15 at 18:14

Viewed 54 times

while doing practice java tests i came across this piece of code

  public class test {
  public static void main(String args[]) {
    int x,y;
    x = 3 & 5;
    y = 3 | 5;
    System.out.println(x + " " + y);

where x = 1 and y = 7. i understand that the & operator will evaluate both sides of an if statement as opposed to && evaluating left side first and then the right. (and the same thing for | and ||).
i dont understand how these operators are used in assignment like this. i know it has something to do with binary (i know what binary is) but how can bitwise AND and OR be used in assignments like this to produce these results?

edited Mar 06 '15 at 18:14

Sotirios Delimanolis

274,122
60
696
724

asked Mar 06 '15 at 18:13

user3527058

It's just an operator, like `+` or `/`. – Sotirios Delimanolis Mar 06 '15 at 18:15
i get that i just dont understand how 3 | 5 can make 7 – user3527058 Mar 06 '15 at 23:49
Do you _know what binary is_? `3` represented in binary is `11`. `5` represented in binary is `101`. `11 | 101` is `111` which is `7`, – Sotirios Delimanolis Mar 06 '15 at 23:50
i get it now its like a truth table. thanks for clearing that up – user3527058 Mar 07 '15 at 00:05

bitwise & and | in assignment

0 Answers0