Java Math BigInteger.getLowestSetBit() 方法

package com.codingdict;



import java.math.*;



public class BigIntegerDemo {



   public static void main(String[] args) {



      // create 2 BigInteger objects

      BigInteger bi1, bi2;



      // create 2 int objects

      int i1, i2;



      // assign values to bi1, bi2

      bi1 = new BigInteger("8");//1000

      bi2 = new BigInteger("7");//0111



      // perform getLowestSetBit on bi1, bi2

      i1 = bi1.getLowestSetBit();

      i2 = bi2.getLowestSetBit();



      String str1 = "Index of rightmost one bit in " +bi1+ " is " +i1;

      String str2 = "Index of rightmost one bit in " +bi2+ " is " +i2;



      // print i1, i2 values

      System.out.println( str1 );

      System.out.println( str2 );

   }

}