Java Math BigDecimal.precision() 方法

package com.codingdict;



import java.math.*;



public class BigDecimalDemo {



   public static void main(String[] args) {



      // create 2 BigDecimal Objects

      BigDecimal bg1, bg2;



      bg1 = new BigDecimal("123.234");

      bg2 = new BigDecimal("523");



      // create 2 int objects

      int i1, i2;



      // assign the result of precision of bg1, bg2 to i1 and i2

      i1 = bg1.precision();

      i2 = bg2.precision();



      String str1 = "The precision of " + bg1 + " is " + i1;

      String str2 = "The precision of " + bg2 + " is " + i2;



      // print the values of i1, i2

      System.out.println( str1 );

      System.out.println( str2 );

   }

}