problem 5.5

gistfile1.java

public class BitConvertNumbers {

  /**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println( bitSwapRequired( 1089, 7 ) );

	}
	
	public static int bitSwapRequired( int a, int b ) {
		int count = 0;
		for ( int c = a ^ b; c != 0; c = c & ( c - 1 ) ) {
			count++;
		}
		return count;
	}

}