& and |

[srinivas sridaragaddi]

  
public class man1{
 public static void main(String args[]) {
 int x,y; 
x = 3 & 5;
 y = 3 | 5;
System.out.println(x + " " + y); 
}
 }
  

output 1 7

please explain. And is this type question on 1.5 also

[kurt hanni]

this are bitwise operations, the bits for 3 = 0011 and 5 = 0101


the "&" (AND) operator returns 1 if both bits are 1
x = 3 & 5;
bits
x = 0011 &
0101
------
0001
x = 1


the "|" (OR) operator returns 1 if both or either bits are 1
y = 3 | 5;
bits
y = 0011 |
0101
------
0111
y = 7

[kurt hanni]

and no they arent in the scjp 5 exam