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Power of Two

This is a nifty little one-liner I wrote which takes a power of two (an integer x where x = 2n) and returns the log2x.

class Pow2 {
  public static void main(String[] args) {
    int i = 1;
    int n = 1048576;
    while( ((n >> ++i) % 2) == 0 );
    System.out.println("Power of 2: " + i);
  }
}
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