import java.util.Scanner;
class goods {
private int id;
private String name;
private int price;
public void init(int id, String name, int price) {
this.id = id;
this.name = name;
this.price = price;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
@Override
public String toString() {
return "goods [id=" + id + ", name=" + name + ", price=" + price + "]";
}
}
public class Main {
public static void showMenu() {
System.out.println("#----请输入您需要的选项:#");
System.out.println("#----[1]展示商品菜单---------#");
System.out.println("#----[2]购买商品---------------#");
System.out.println("#----[3]撤销商品---------------#");
System.out.println("#----[4]展示购物车------------#");
System.out.println("#----[5]结算---------------------#");
System.out.println("#----[任意键]退出---------------------#");
}
public static void showCart(int[][] cart, goods[] jd) {
for (int i = 0; i < 10; i++) {
if (cart[0][i] != -1) {
for (int j = 0; j < 10; j++) {
if (jd[j].getId() == cart[0][i]) {
System.out.println(jd[j].toString());
}
}
}
}
}
public static void main(String[] args) {
showMenu();// 展示菜单系统
int temp;
int Cart[][] = new int[2][10];
@SuppressWarnings("resource")
Scanner input = new Scanner(System.in);
goods jd[] = new goods[10];
@SuppressWarnings("unused")
goods cart[] = new goods[10];
jd[0].init(0, "机械键盘", 400);
jd[1].init(1, "无线鼠标", 800);
jd[2].init(2, "降噪耳机", 1200);
jd[3].init(3, "电竞显示器", 3000);
jd[4].init(4, "电竞椅", 2500);
jd[5].init(5, "RTX3080", 12000);
jd[6].init(6, "i7-10700k", 2799);
jd[7].init(7, "iphone12", 9197);
jd[8].init(8, "格力空调", 2499);
jd[9].init(9, "数码相机", 4498);
int choice;
choice = input.nextInt();
switch (choice) {
case 1: {
for (int i = 0; i < 10; i++) {
System.out.println(jd[i].toString());
}
}
break;
case 2: {
for (int i = 0; i < 10; i++) {
Cart[0][i] = -1;
Cart[1][i] = 0;
}
for (int i = 0; i < 10; i++) {
if (Cart[0][i] != -1) {
System.out.println("请输入商品编号:");
Cart[0][i] = input.nextInt();
System.out.println("请输入商品数量:");
Cart[1][i] = input.nextInt();
break;
}
}
}
break;
case 3: {
System.out.println("请输入所要删减的商品编号:");
temp = input.nextInt();
for (int i = 0; i < 10; i++) {
if (Cart[0][i] == temp) {
System.out.println("请输入所要删减的数量:");
temp = input.nextInt();
if (temp >= Cart[1][i])
Cart[0][i] = -1;
else {
Cart[1][i] -= temp;
}
System.out.println("删减成功!");
break;
} else {
System.out.println("删除失败");
break;
}
}
}
break;
case 4: {
showCart(Cart, jd);
}
break;
case 5: {
temp = 0;
for (int i = 0; i < 10; i++) {
if (Cart[0][i] != -1) {
temp += jd[Cart[0][i]].getPrice() * Cart[1][i];
}
}
System.out.print("总价为:");
System.out.println(temp);
}
break;
default: {
System.out.println("错误输入!!!");
}
}
}
}
原文:https://www.cnblogs.com/Guangyang/p/13967234.html