Java – iterates the bits of char

Suppose I have a char "C" whose ASCII code is 0110 0111 How do I iterate its bits? I want to build a vector from these 1 and 0@ H_ 419_ 2@

resolvent

Solution

You can easily iterate over them using bitwise operators:

char c = 'C';
for (int i = 0; i < 8; ++i)
{
  // extract the i-th bit
  int b = ((c & 1<<i) >> i);
  // b will be 1 if i-th bit is set,0 otherwise

  // do whatever you want with b
}

You can optimize it (as suggested in the comments):

int b = ((c >> i) & 1);

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