Java Math BigInteger.shiftRight() 方法

package com.codingdict;



import java.math.*;



public class BigIntegerDemo {



   public static void main(String[] args) {



      // create 3 BigInteger objects

      BigInteger bi1, bi2, bi3;



      bi1 = new BigInteger("4");



      // perform right shift operation on bi1 using 2 and -2

      bi2 = bi1.shiftRight(2);

      bi3 = bi1.shiftRight(-2);



      String str1 = "Right shift on " +bi1+ ", 2 times gives " +bi2;

      String str2 = "Right shift on " +bi1+ ", -2 times gives " +bi3;



      // print bi2, bi3 values

      System.out.println( str1 );

      System.out.println( str2 );

   }

}