java四舍五入

/** * arrear *  * @param payment * @param arrearflg * @return int */public static int arrear(Float payment, String arrearflg) {if (CommonConstant.S_ONE.equals(arrearflg)) {return (int) Math.floor(payment);//向上取整} else if (CommonConstant.S_TWO.equals(arrearflg)) {return (int) Math.ceil(payment);//向下取整} else if (CommonConstant.S_THREE.equals(arrearflg)) {return (int) Math.round(payment);//四舍五入} else {return (int) Math.round(payment);}}