1 package org. open. java; 2 3/** 4*任务1 5 * @author chenjunfeng02 6 * 7 */ 8 public class FinalExam1 { 9 private float waterPrice = 3.0f; //矿泉水 10 private float breadPrice = 3.5f; //面包 11 private float icecreamPrice = 2.5f; //冰棍. 12 private float fastFoodPrice = 4.5f; //方便面 13 private float cocaColaPrice = 3.5f; //瓶装可乐 14 15 public FinalExam1() { 16 17 } 18 19 /** 20 *计算购物的总价格 21 * 22 * @param water矿泉水的数量 23 * @param bread 面包的数量 24 * @param icecream 冰棍的数量 25 *@return 26 */ 27 public float calcPriceByXiaoMing(int waterNum, int breadNum, int cocaColaNum) { 28 System. out. println("==========小明购买的产品列表==============="); 29 System. out.println("矿泉水: " + waterNum); 30 System. out.printIn("面包:" + breadNum) ; 31 System. out.printIn("瓶装可乐:" + cocaColaNum) ; 32 33 float totalPrice = waterNum * waterPrice + 34 breadNum * breadPrice + cocaColaNum * this. cocaColaPrice; 35 System. out.printIn("计算总结price:" + totalPrice) ; 36 37 return totalPrice; 38 } 39 40 public float calcPriceByXiaoMei(int iceCreamNum, int cocaColaNum, int fastFoodNum) { 41 System. out.println("==========小美购买的产品列表=============="); 42 System. out.println("冰棍: "+ iceCreamNum); 43 System. out.println("可乐数量:" + cocaColaNum); 44 System. out.printIn("方便面数量:" + fastFoodNum); 45 46 float totalPrice = iceCreamNum * icecreamPrice + cocaColaNum * cocaColaPrice 47 + fastFoodNum * fastFoodPrice; 48 System. out. printIn("计算总价Price:" + totalPrice); 49 50 return totalPrice; 51 } 52 53 public static void main(String[] args) { 54 Fina LExam1 finalExam1 = new FinalExam1(); 55 56 //计算总价，小明:矿泉水2瓶，面包1个，可乐: 1个 57 float XiaoMingPrice = finalExam1. calcPriceByXiaoMing(2, 1, 1); 58 System. out. println("小明购买Total Price:" + XiaoMingPrice); 59 60 //计算总价，小美:冰棍3个，瓶装可乐: 2个，方便面: 1包 61 float XiaoMeiPrice = finalExam1. calcPriceByXiaoMei(3, 2, 1); 62 System. out. print1n("小美购买总价Total Price:" + xiaoMeiPrice); 63 } 64 } 65 本文来源：https://www.wddqw.com/doc/3f1f6d7369d97f192279168884868762caaebb2e.html