Java Math BigDecimal.scale() 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("123.0");

      bg2 = new BigDecimal("-1.123");



      // create two int objects

      int i1,i2;



      // assign the result of scale on bg1, bg2 to i1,i2

      i1 = bg1.scale();

      i2 = bg2.scale();



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

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



      // print the values of i1,i2;

      System.out.println( str1 );

      System.out.println( str2 );

   }

}