在Java 7中使用新的BitSet方法

import java.util.BitSet;
/** 时代Java - nowjava.com 提供 **/

public class Main {


    public static void main(String[] args) {

        BitSet bitSet = new BitSet();

        long[] array = {1, 21, 3};

        bitSet = BitSet.valueOf(array);

        System.out.println(bitSet);


        long[] tmp = bitSet.toLongArray();

        for (long number : tmp) {

            System.out.println(number);

        }

        

        // There's more

        System.out.println(bitSet.previousSetBit(1));   

        System.out.println(bitSet.previousClearBit(66));

        

    }//nowjava - 时代Java 提供

}