宁宁食堂纯控制台（Java课设）

import java.util.Iterator; import java.util.Scanner; /** * 管理类 */ public class ManageImpl implements Manage{ //用于控制台输入 public static Scanner scanner = new Scanner(System.in); //显示所有餐品信息 public void show() { //判断有数据 if (Meals.mealsList.size()>0){ System.out.println("---------------------------------查询结果如下所示---------------------------------"); //遍历集合 for (Meals Meals : Meals.mealsList) { System.out.println(Meals.toString()); } }else { System.out.println("没有任何的数据信息！"); } //调用菜单 Menu.Menu(); } //添加 public void add(){ System.out.println("请输入餐品id号"); String id=scanner.next(); System.out.println("请输入餐品名称"); String name=scanner.next(); System.out.println("请输入餐品描述"); String description=scanner.next(); System.out.println("请输入餐品价格"); String price=scanner.next(); System.out.println("请输入餐品数量"); String num=scanner.next(); //封装对象 Meals Meals = new Meals(id, name, description, price, num); //存到集合 Meals.mealsList.add(Meals); System.out.println("添加成功！"); Menu.Menu(); } //更新 public void update(){ System.out.println("请输入你要更新的餐品id号"); String id=scanner.next(); System.out.println("请输入餐品名称"); String name=scanner.next(); System.out.println("请输入餐品描述"); String description=scanner.next(); System.out.println("请输入餐品价格"); String price=scanner.next(); System.out.println("请输入餐品数量"); String num=scanner.next(); Meals Meals = new Meals(id, name, description, price, num); //获取迭代器用于遍历集合 Iterator<Meals> iterator = Meals.mealsList.iterator(); //如果集合不为空，遍历集合 while (iterator.hasNext()){ //如果id相同就移除 if (iterator.next().getId().equals(id)){ iterator.remove(); } } //把修改后的新对象加到集合 Meals.mealsList.add(Meals); System.out.println("修改成功！"); Menu.Menu(); } //删除 public void delete(){ System.out.println("请输入删除的餐品的餐品名称"); String name = scanner.next(); //迭代器用于遍历集合 Iterator<Meals> iterator = Meals.mealsList.iterator(); //如果集合不为空，遍历集合 while (iterator.hasNext()){ //如果id相同就移除 if (iterator.next().getName().equals(name)){ iterator.remove(); } } System.out.println("删除成功！"); Menu.Menu(); } @Override public void selectByName() { System.out.println("请输入查询的餐品信息的餐品名称"); String name = scanner.next(); //判断有数据 if (Meals.mealsList.size()>0){ System.out.println("---------------------------------查询结果如下所示---------------------------------"); //遍历集合 for (Meals Meals : Meals.mealsList) { if (Meals.getName().equals(name)){ System.out.println(Meals.toString()); } } }else { System.out.println("没有任何的数据信息！"); } //调用菜单 Menu.Menu(); } }