java基础开发%和/的使用

 double marketPrice=Double.valueOf(groupGoods.getMarketPrice());

double sellPrice=Double.valueOf(groupGoods.getSellingPrice());

if (sellPrice>marketPrice) {

throw new OpenException(ErrorCode.MARKET_HIGH_THAN_SELLING,null);

}

if ((sellPrice*100)%10>0||(sellPrice*1000)%10>0) {

throw new OpenException(ErrorCode.PRICE_LIMIT,"传入参数：SellingPrice不能超出角");

} 

if ((marketPrice*100)%10>0||(marketPrice*1000)%10>0) {

throw new OpenException(ErrorCode.PRICE_LIMIT,"传入参数：marketPrice不能超出角");

} 

 

判断价格是否是自己需要的小数位？