import java.util.Scanner; public class Ordering { public static void main(String[] args) { //訂單數據主體 int[] orderIds = new int[4]; String[] customers = new String[4]; String[] dishNames = new String[4]; int[] times = new int[4]; String[] adresses = new String[4]; int[] numbers = new int[4]; int[] totalPrice = new int[4]; int[] status = new int[4]; //初始化兩條訂單 orderIds[0] = 1; customers[0] = "張三"; dishNames[0] = "紅燒帶魚"; times[0] = 13; adresses[0] = "天泰二路9號"; numbers[0] = 2; totalPrice[0] = 60; status[0] = 1; orderIds[1] = 2; customers[1] = "李四"; dishNames[1] = "燒鴨"; times[1] = 13; adresses[1] = "天泰二路9號"; numbers[1] = 1; totalPrice[1] = 42; status[1] = 1; //餐品數據主體 int[] dishIds = {1,2}; String[] dishNames1 = {"紅燒帶魚","燒鴨"}; int[] price = {30,36}; int[] totalPraises = {30,36}; // int chooseNum = 0; int chooseNum; boolean isExit = false; //通過標志位標記，確定是否退出 Scanner input = new Scanner(System.in); do{ System.out.println("************************歡迎進入吃貨聯盟訂餐系統************************"); System.out.println("1.我要訂餐"); System.out.println("2.查看餐袋"); System.out.println("3.刪除訂單"); System.out.println("4.簽收訂單"); System.out.println("5.我要點贊"); System.out.println("6.退出系統"); System.out.println("******************************************************************"); System.out.print("請輸入功能編號："); //每個break僅跳出最內層的循環體，一般用在循環體中符合條件的條件操作最末處 chooseNum = input.nextInt(); switch (chooseNum){ case 1: System.out.println("1.我要訂餐"); try{ boolean isAddFind = false; int orderIndex = -1; for(int i=0;i<dishNames.length;i++){ if(dishNames[i]==null){ isAddFind = true; orderIndex = i; //顯示菜品 System.out.println("菜品編號\t菜品名稱\t單價\t點贊數"); for(int j=0;j<dishNames1.length;j++){ System.out.println(dishIds[j]+"\t"+dishNames1[j]+"\t"+price[j]+"元"+"\t"+totalPraises[j]+"贊"); } System.out.print("選擇菜品序號："); chooseNum = input.nextInt(); for(int j=0;j<dishNames1.length;j++){ if(chooseNum==dishIds[j]){ System.out.print("請輸入份數："); int number = input.nextInt(); System.out.print("請輸入訂單人姓名："); String customer = input.next(); System.out.print("請輸入10~20之間的整數送餐時間："); int time = input.nextInt(); while(time>20 || time<10){ System.out.print("請重新輸入送餐時間："); time = input.nextInt(); } System.out.print("請輸入送餐地址："); String adresse = input.next(); //顯示訂單信息 int orderId = orderIndex + 1; String dishName = dishNames1[j]; int dishPrice = price[j]*number; int song = dishPrice > 50 ? 0:6; totalPrice[orderIndex] = dishPrice + song; System.out.println("*****************訂單信息********************"); System.out.println("訂單人姓名："+customer); System.out.println("菜品名稱："+dishName); System.out.println("份數："+number); System.out.println("送餐時間："+time+"點"); System.out.println("送餐地址："+adresse); System.out.println("菜品金額："+dishPrice); System.out.println("送餐費："+song); System.out.println("總額："+totalPrice[orderIndex]); orderIds[orderIndex] = orderId; customers[orderIndex] = customer; dishNames[orderIndex] = dishName; times[orderIndex] = time; adresses[orderIndex] = adresse; numbers[orderIndex] = number; status[orderIndex] = 0; //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 break; } } //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 break; } } if(!isAddFind){ System.out.println("對不起，訂單已滿！"); } }catch(Exception e){ e.printStackTrace(); } break; case 2: System.out.println("2.查看餐袋"); try{ System.out.println("訂單編號\t客戶名稱\t菜品名稱\t配送時間\t配送地址\t\t份數\t總金額\t訂單狀態"); for(int i=0;i<dishNames.length;i++){ if(dishNames[i]!=null){ String sta = status[i]==0 ? "已預訂":"已簽收"; System.out.println(orderIds[i]+"\t"+customers[i]+"\t"+dishNames[i]+"\t"+times[i]+"點"+"\t"+adresses[i]+"\t"+numbers[i]+"份"+"\t"+totalPrice[i]+"元"+"\t"+sta); } } }catch(Exception e){ e.printStackTrace(); } break; case 3: System.out.println("3.刪除訂單"); System.out.print("請輸入要刪除的訂單編號："); chooseNum = input.nextInt(); boolean isDelFind = false; for(int i=0;i<dishNames.length;i++){ System.out.println(status[i]); if(chooseNum==orderIds[i] && status[i]==1){ isDelFind = true; for(int j=chooseNum;j<dishNames.length;j++){ orderIds[j-1] = orderIds[j]; customers[j-1] =customers[j]; dishNames[j-1] = dishNames[j]; times[j-1] = times[j]; adresses[j-1] = adresses[j]; numbers[j-1] = numbers[j]; totalPrice[j-1] = totalPrice[j]; status[j-1] = status[j]; } orderIds[dishNames.length-1] = 0;; customers[dishNames.length-1] =null; dishNames[dishNames.length-1] = null; times[dishNames.length-1] = 0; adresses[dishNames.length-1] = null; numbers[dishNames.length-1] = 0; totalPrice[dishNames.length-1] = 0; status[dishNames.length-1] = 0; break; }else if(chooseNum==orderIds[i] && status[i]==0){ isDelFind = true; System.out.println("對不起，該訂單還未簽收，不能刪除！"); break; } } if(!isDelFind){ System.out.println("沒有找打要刪除的訂單！"); } break; case 4: System.out.println("4.簽收訂單"); System.out.print("請輸入要簽收的訂單編號："); chooseNum = input.nextInt(); boolean isGetFind = false; for(int i=0;i<dishNames.length;i++){ if(chooseNum==orderIds[i] && status[i]==0){ isGetFind = true; status[chooseNum-1] = 1; System.out.println("訂單簽收成功！"); break; }else if(chooseNum==orderIds[i] && status[i]==1){ isGetFind = true; System.out.println("該訂單已簽收過，不能再次簽收！"); break; } } if(!isGetFind){ System.out.println("對不起，沒有找到要簽收的訂單！"); } break; case 5: System.out.println("5.我要點贊"); boolean isZanFind = false; System.out.println("菜品序號\t菜品名稱\t單價\t點贊數"); for(int i=0;i<dishNames1.length;i++){ if(dishNames1[i]!=null){ System.out.println(dishIds[i]+"\t"+dishNames1[i]+"\t"+price[i]+"元\t"+totalPraises[i]+"贊\t"); } } System.out.print("請輸入要點贊的菜品序號："); chooseNum = input.nextInt(); for(int i=0;i<dishNames1.length;i++){ if(chooseNum == dishIds[i]){ isZanFind = true; totalPraises[i]++; break; } } if(!isZanFind){ System.out.println("對不起，您要點贊的菜品不存在！"); } break; case 6: isExit = true; break; default: break; } if(!isExit){ System.out.print("輸入0返回："); chooseNum = input.nextInt(); } }while(chooseNum==0); System.out.println("退出系統,歡迎再次惠顧！"); input.close(); } }
數據主體： //訂單數據主體 int[] orderIds = new int[4]; String[] customers = new String[4]; String[] dishNames = new String[4]; int[] times = new int[4]; String[] adresses = new String[4]; int[] numbers = new int[4]; int[] totalPrice = new int[4]; int[] status = new int[4]; //餐品數據主體 int[] dishIds = {1,2}; String[] dishNames1 = {"紅燒帶魚","燒鴨"}; int[] price = {30,36}; int[] totalPraises = {30,36};
整體框架： import java.util.Scanner; public class Ordering { public static void main(String[] args) { //訂單數據主體 //初始化兩條訂單 //餐品數據主體 int chooseNum; //獲取鍵盤輸入數字 boolean isExit = false; //通過標志位標記，確定是否退出 Scanner input = new Scanner(System.in); //創建一個Scanner類型輸入流對象 do{ //顯示首頁內容 System.out.println("************************歡迎進入吃貨聯盟訂餐系統************************"); System.out.println("1.我要訂餐"); System.out.println("2.查看餐袋"); System.out.println("3.刪除訂單"); System.out.println("4.簽收訂單"); System.out.println("5.我要點贊"); System.out.println("6.退出系統"); System.out.println("******************************************************************"); //鍵盤輸入功能編號 System.out.print("請輸入功能編號："); //每個break僅跳出最內層的循環體，一般用在循環體中符合條件的條件操作最末處 chooseNum = input.nextInt(); //通過輸入編號進入不同分支 switch (chooseNum){ case 1: System.out.println("1.我要訂餐"); boolean isAddFind = false; //是否找到訂單添加位標志 false：未找到 true：找到 int orderIndex = -1; //插入訂單位置下標 //循環查找首個可插入訂單的位置，如果找到則標記為置為true，記錄插入位置下標 for(int i=0;i<dishNames.length;i++){ if(dishNames[i]==null){ isAddFind = true; orderIndex = i; //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 break; } } //未找到提交訂單的位置 if(!isAddFind){ System.out.println("對不起，訂單已滿！"); } break; case 2: System.out.println("2.查看餐袋"); break; case 3: System.out.println("3.刪除訂單"); System.out.print("請輸入要刪除的訂單編號："); chooseNum = input.nextInt(); //鍵盤輸入的編號 boolean isDelFind = false; //是否找到刪除訂單的標志 false：未找到 true：找到 //循環查找要刪除的訂單 for(int i=0;i<dishNames.length;i++){ //找到訂單，訂單狀態為已簽收 if(chooseNum==orderIds[i] && status[i]==1){ isDelFind = true; //將要刪除訂單之后的訂單順序往前移1個位置，最后一位清空 for(int j=chooseNum;j<dishNames.length;j++){ orderIds[j-1] = orderIds[j]; ... } orderIds[dishNames.length-1] = 0;; ... break; }//找到訂單，訂單狀態為已預定，不能刪除 else if(chooseNum==orderIds[i] && status[i]==0){ isDelFind = true; System.out.println("對不起，該訂單還未簽收，不能刪除！"); break; } } //未找到要刪除的訂單 if(!isDelFind){ System.out.println("沒有找打要刪除的訂單！"); } break; case 4: System.out.println("4.簽收訂單"); System.out.print("請輸入要簽收的訂單編號："); chooseNum = input.nextInt(); //鍵盤輸入的編號 boolean isGetFind = false; //是否找到簽收訂單的標志 false：未找到 true：找到 //循環查找要簽收的訂單 for(int i=0;i<dishNames.length;i++){ //找到訂單，訂單狀態為已預定 if(chooseNum==orderIds[i] && status[i]==0){ isGetFind = true; //將訂單的狀態改為已簽收 status[chooseNum-1] = 1; System.out.println("訂單簽收成功！"); break; }//找到訂單，訂單狀態為已簽收，不能再次簽收 else if(chooseNum==orderIds[i] && status[i]==1){ isGetFind = true; System.out.println("該訂單已簽收過，不能再次簽收！"); break; } } //未找到要簽收的訂單 if(!isGetFind){ System.out.println("對不起，沒有找到要簽收的訂單！"); } break; case 5: System.out.println("5.我要點贊"); boolean isZanFind = false; //是否找到點贊菜品的標志 false：未找到 true：找到 System.out.println("菜品序號\t菜品名稱\t單價\t點贊數"); System.out.print("請輸入要點贊的菜品序號："); chooseNum = input.nextInt(); //鍵盤輸入的編號 //循環查找要點贊的菜品 for(int i=0;i<dishNames1.length;i++){ if(chooseNum == dishIds[i]){ isZanFind = true; totalPraises[i]++; //點在數加1 break; } } //未找到要點贊的菜品 if(!isZanFind){ System.out.println("對不起，您要點贊的菜品不存在！"); } break; case 6: isExit = true; //將退出系統標記置為true break; default: break; } //如果不退出系統，都提示"輸入0返回：",返回到首頁 if(!isExit){ System.out.print("輸入0返回："); chooseNum = input.nextInt(); } }while(chooseNum==0); System.out.println("退出系統,歡迎再次惠顧！"); input.close(); } }
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import java.util.Arrays; public class Order { private int[] orderIds = new int[4]; private String[] customers = new String[4]; private String[] dishNames = new String[4]; private int[] times = new int[4]; private String[] adresses = new String[4]; private int[] numbers = new int[4]; private int[] totalPrice = new int[4]; private int[] status = new int[4]; /** * 因為類中的數組變量都是私有的，無法直接訪問，但是在刪除時，需要從刪除位置往前移位 * @param obj * @param start */ public void forwardMove(int[] obj, int start){ if(start <= 0 || start >= obj.length){ return; }else{ if(start >= 1 && start <obj.length){ for(int i=start;i<obj.length;i++){ obj[i-1] = obj[i]; } } obj[obj.length-1] = 0; } } public void forwardMove(String[] obj, int start){ if(start < 0 || start >= obj.length){ return; }else{ if(start >= 1 && start <obj.length){ for(int i=start;i<obj.length;i++){ obj[i-1] = obj[i]; } } obj[obj.length-1] = null; } } public int[] getOrderIds() { return orderIds; } /** * 靜態數組在添加元素時，需要保持原有數組，所有這里通過提供的Setter方法設置數組指定位置的值 * 問題：對Setter方法太過復雜，實際應用時考慮是否將類變量由私有改為默認或者公有 * @param index * @param value */ public void setOrderIds(int index, int value) { if(index >= 0 && index < orderIds.length){ if(this.orderIds[index]==0){ this.orderIds[index] = value; } } } public String[] getCustomers() { return customers; } public void setCustomers(int index, String customer) { if(index >= 0 && index < customers.length){ if(this.customers[index] == null){ this.customers[index] = customer; } } } public String[] getDishNames() { return dishNames; } public void setDishNames(Product product, int index, String value) { this.dishNames[0] = product.getDishNames()[0]; this.dishNames[1] = product.getDishNames()[1]; if(index >= 0 && index < dishNames.length){ if(this.dishNames[index]==null){ this.dishNames[index] = value; } } } public int[] getTimes() { return times; } public void setTimes(int index, int value) { if(index >= 0 && index < times.length){ if(this.times[index] == 0){ this.times[index] = value; } } } public String[] getAdresses() { return adresses; } public void setAdresses(int index, String adresse) { if(index >= 0 && index < adresses.length){ if(this.adresses[index] == null){ this.adresses[index] = adresse; } } } public int[] getNumbers() { return numbers; } public void setNumbers(int index, int value) { if(index >= 0 && index < numbers.length){ if(this.numbers[index] == 0){ this.numbers[index] = value; } } } public int[] getTotalPrice() { return totalPrice; } public void setTotalPrice(int index, int value) { if(index >= 0 && index < totalPrice.length){ if(this.totalPrice[index] == 0){ this.totalPrice[index] = value; } } } public int[] getStatus() { return status; } public void setStatus(int index, int value) { if(index >= 0 && index < status.length){ if(this.status[index] == 0){ this.status[index] = value; } } } @Override public String toString() { return "Order [orderIds=" + Arrays.toString(orderIds) + ", customers=" + Arrays.toString(customers) + ", dishNames=" + Arrays.toString(dishNames) + ", times=" + Arrays.toString(times) + ", adresses=" + Arrays.toString(adresses) + ", numbers=" + Arrays.toString(numbers) + ", totalPrice=" + Arrays.toString(totalPrice) + ", status=" + Arrays.toString(status) + "]"; } }
import java.util.Arrays; public class Product { // private int[] dishIds = {1,2}; // private String[] dishNames = {"紅燒帶魚","燒鴨"}; // private int[] prices = {30,36}; // private int[] totalPraises = {30,36}; private int[] dishIds = {1,2,3,4}; private String[] dishNames = {"紅燒帶魚","燒鴨","紅燒帶魚1","燒鴨1"}; private int[] prices = {30,36,20,26}; private int[] totalPraises = {30,36,20,26}; public int[] getDishIds() { return dishIds; } public void setDishIds(int[] dishIds) { this.dishIds = dishIds; } public String[] getDishNames() { return dishNames; } public void setDishNames(String[] dishNames) { this.dishNames = dishNames; } public int[] getPrices() { return prices; } public void setPrices(int[] prices) { this.prices = prices; } public int[] getTotalPraises() { return totalPraises; } public void setTotalPraises(int index, int value) { if(index >= 0 && index < totalPraises.length){ this.totalPraises[index] = value; } } @Override public String toString() { return "Product [dishIds=" + Arrays.toString(dishIds) + ", dishNames=" + Arrays.toString(dishNames) + ", prices=" + Arrays.toString(prices) + ", totalPraises=" + Arrays.toString(totalPraises) + "]"; } }
import java.util.HashSet; import java.util.Scanner; import java.util.Set; public class Client { //成員變量一般只聲明，不初始化，因為有時初始化調用的對象不存在或者還沒生成 private Order order ; private Product product ; Scanner input = new Scanner(System.in); private int chooseNum; private int orderLength; private int productLength; public Client(){ this.order = new Order() ; this.product = new Product(); //創建Order、Product對象后，才能調用對象所在類的方法 orderLength = order.getDishNames().length; productLength = product.getDishNames().length; } private void init(){ this.order.setOrderIds(0,1); this.order.setCustomers(0,"張三"); this.order.setDishNames(product,1,"紅燒帶魚"); this.order.setTimes(0,13); this.order.setAdresses(0,"天泰二路9號"); this.order.setNumbers(0,2); this.order.setTotalPrice(0,60); this.order.setStatus(0,1); this.order.setOrderIds(1,2); this.order.setCustomers(1,"李四"); this.order.setDishNames(product,1,"燒鴨"); this.order.setTimes(1,13); this.order.setAdresses(1,"天泰二路9號"); this.order.setNumbers(1,1); this.order.setTotalPrice(1,42); this.order.setStatus(1,1); } /** * 功能菜單 */ public void menu(){ init(); boolean isExit = false ; do { System.out.println("************************歡迎進入吃貨聯盟訂餐系統************************"); System.out.println("1.我要訂餐"); System.out.println("2.查看餐袋"); System.out.println("3.刪除訂單"); System.out.println("4.簽收訂單"); System.out.println("5.我要點贊"); System.out.println("6.退出系統"); System.out.println("******************************************************************"); System.out.print("請輸入功能編號："); chooseNum = input.nextInt(); switch(chooseNum){ case 1: System.out.println("1.我要訂餐"); add(); break; case 2: System.out.println("2.查看餐袋"); display(); break; case 3: System.out.println("3.刪除訂單"); delete(); break; case 4: System.out.println("4.簽收訂單"); get(); break; case 5: System.out.println("5.我要點贊"); good(); break; case 6: System.out.println("6.退出系統"); isExit = true; break; default: break; } if(!isExit){ System.out.print("輸入0返回："); chooseNum = input.nextInt(); } }while(chooseNum==0); System.out.println("已退出系統,歡迎再次惠顧！"); input.close(); System.exit(1); } /** * 菜品點贊 */ private void good() { boolean isZanFind = false; displayProduct(); System.out.print("請輸入要點贊的菜品序號："); chooseNum = input.nextInt(); for(int i=0;i<productLength;i++){ if(chooseNum == product.getDishIds()[i]){ isZanFind = true; product.setTotalPraises(chooseNum-1, product.getTotalPraises()[chooseNum-1]+1); //查找到符合條件的對象后，跳出循環 break; } } //沒有找到菜品 if(!isZanFind){ System.out.println("對不起，您要點贊的菜品不存在！"); } } /** * 刪除訂單 */ private void delete() { display(); System.out.print("請輸入要刪除的訂單編號："); chooseNum = input.nextInt(); boolean isDelFind = false; for(int i=0;i<orderLength;i++){ if(chooseNum==order.getOrderIds()[i] && order.getStatus()[i]==1){ isDelFind = true; //不能將chooseNum的值傳給forwardMove，因為chooseNum前面的訂單被刪除了就不可以最為數據移位的參考了 order.forwardMove(order.getOrderIds(), i+1); order.forwardMove(order.getCustomers(), i+1); order.forwardMove(order.getDishNames(), i+1); order.forwardMove(order.getTimes(), i+1); order.forwardMove(order.getAdresses(), i+1); order.forwardMove(order.getNumbers(), i+1); order.forwardMove(order.getTotalPrice(), i+1); order.forwardMove(order.getStatus(), i+1); //查找到符合條件的對象后，跳出循環 System.out.println("訂單刪除成功！"); break; }else if(chooseNum==order.getOrderIds()[i] && order.getStatus()[i]==0){ isDelFind = true; System.out.println("對不起，該訂單還未簽收，不能刪除！"); //跳出循環 break; } } //沒有找到訂單 if(!isDelFind){ System.out.println("沒有找打要刪除的訂單！"); } } /** * 展示訂單 */ private void display() { System.out.println("訂單編號\t客戶名稱\t菜品名稱\t配送時間\t配送地址\t\t份數\t總金額\t訂單狀態"); for(int i=0;i<orderLength;i++){ if(order.getDishNames()[i]!=null){ String sta = order.getStatus()[i]==0 ? "已預訂":"已簽收"; System.out.println(order.getOrderIds()[i]+"\t"+order.getCustomers()[i]+"\t"+ order.getDishNames()[i]+"\t"+order.getTimes()[i]+"點"+"\t"+order.getAdresses()[i]+"\t"+ order.getNumbers()[i]+"份"+"\t"+order.getTotalPrice()[i]+"元"+"\t"+sta); } } } /** * 簽收訂單 */ private void get() { display(); System.out.print("請輸入要簽收的訂單編號："); chooseNum = input.nextInt(); boolean isGetFind = false; for(int i=0;i<orderLength;i++){ if(chooseNum==order.getOrderIds()[i] && order.getStatus()[i]==0){ isGetFind = true; order.setStatus(i, 1); System.out.println("訂單簽收成功！"); //查找到符合條件的對象后，跳出循環 break; }else if(chooseNum==order.getOrderIds()[i] && order.getStatus()[i]==1){ isGetFind = true; System.out.println("該訂單已簽收過，不能再次簽收！"); //跳出循環 break; } } //沒有找到訂單 if(!isGetFind){ System.out.println("對不起，沒有找到要簽收的訂單！"); } } /** * 添加訂單 */ private void add(){ boolean isAddFind = false; boolean isProductFind = false; int orderIndex = -1; for(int i=0;i<orderLength;i++){ if(order.getDishNames()[i]==null){ isAddFind = true; orderIndex = i; //顯示菜品 displayProduct(); System.out.print("選擇菜品序號："); chooseNum = input.nextInt(); for(int j=0;j<productLength;j++){ if(chooseNum==product.getDishIds()[j]){ isProductFind = true; System.out.print("請輸入份數："); int number = input.nextInt(); System.out.print("請輸入訂單人姓名："); String customer = input.next(); System.out.print("請輸入10~20之間的整數送餐時間："); int time = input.nextInt(); while(time>20 || time<10){ System.out.print("請重新輸入送餐時間："); time = input.nextInt(); } System.out.print("請輸入送餐地址："); String adresse = input.next(); //顯示訂單信息,再將訂單信息存入數組中 int orderId = orderIndex + 1; String dishName = product.getDishNames()[j]; int dishPrice = (product.getPrices()[j])*number; int song = dishPrice > 50 ? 0:6; order.setTotalPrice(orderIndex, dishPrice + song); System.out.println("*****************訂單信息********************"); System.out.println("訂單人姓名："+customer); System.out.println("菜品名稱："+dishName); System.out.println("份數："+number); System.out.println("送餐時間："+time+"點"); System.out.println("送餐地址："+adresse); System.out.println("菜品金額："+dishPrice); System.out.println("送餐費："+song); System.out.println("總額："+order.getTotalPrice()[orderIndex]); order.setOrderIds(orderIndex, orderId); order.setCustomers(orderIndex, customer); order.setDishNames(product, orderIndex, dishName); order.setTimes(orderIndex, time); order.setAdresses(orderIndex, adresse); order.setNumbers(orderIndex, number); order.setStatus(orderIndex, 0); //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 break; } //菜品不存在 } //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 if(!isProductFind){ System.out.println("對不起，你要點的菜品不存在"); //菜品不存在 } //遍歷到符合條件的記錄再跳出，for循環首層不宜跳出 break; } } //沒有找到插入訂單的位置 if(!isAddFind){ System.out.println("對不起，訂單已滿！"); } } /** * 展示菜品列表 */ private void displayProduct(){ System.out.println("菜品編號\t菜品名稱\t單價\t點贊數"); for(int j=0;j<productLength;j++){ System.out.println(product.getDishIds()[j]+"\t"+product.getDishNames()[j]+ "\t"+product.getPrices()[j]+"元"+"\t"+product.getTotalPraises()[j]+"贊"); } } }
public class ClientTest { public static void main(String[] args) { Client client = new Client(); client.menu(); } } 運行結果： ************************歡迎進入吃貨聯盟訂餐系統************************ 1.我要訂餐 2.查看餐袋 3.刪除訂單 4.簽收訂單 5.我要點贊 6.退出系統 ****************************************************************** 請輸入功能編號：1 1.我要訂餐 菜品編號 菜品名稱 單價 點贊數 1 紅燒帶魚 30元 30贊 2 燒鴨 36元 36贊 3 紅燒帶魚1 20元 20贊 4 燒鴨1 26元 26贊 選擇菜品序號：