Bitwise And operator

Question

If the binaryStrings of two ints "a" and "b" are different lengths will the & operator always return zero? i.e
int a =8;
int b =4;
String binarya = "1000"
String binaryb = "100"
System.out.println(8,4); --> 0
Thanks

Answer 1

847102 wrote:
Kayaman wrote:
There is no "different length", the two parameters will always have the same length. Bitwise AND will work on bytes, shorts, ints and longs, meaning 8-bit, 16-bit, 32-bit or 64-bit "lengths".
Each resulting bit is 1 if both input bits are 1, otherwise the resulting bit is 0.The answer 8 & 4 = 0Both are ints. Both are 32 bits.
   00000000 00000000 00000000 00001000  // 8
   00000000 00000000 00000000 00000100  // 4
   00000000 00000000 00000000 00000000
1000
100That's the same as if, in 2nd grade arithmetic, when you're adding 1000 + 100, you do
   1000
   100
+_____
   2000Edited by: jverd on Apr 20, 2011 8:35 AM