numberutils.java

《j2ee开发全程实录》随书源码

package com.cownew.ctk.common;

import java.math.BigDecimal;

import com.cownew.ctk.constant.BigDecimalConst;

public class NumberUtils
{
	public static BigDecimal getNagtiveValue(BigDecimal value)
	{
		if (value == null)
			return null;
		if (value.compareTo(BigDecimalConst.ZERO) <= 0)
			return value;
		BigDecimal nagtiveValue = BigDecimalConst.ZERO;
		nagtiveValue = nagtiveValue.subtract(value);
		return nagtiveValue;
	}
}