PTA题目集1~3的总结性Blog

class Dish {
    String name;//菜品名称
    int unit_price;    //单价
    //int num;
 
    int getPrice(int portion) {
        int peic = 0;
        if (portion == 1) {
            peic = unit_price ;
        } else if (portion == 2) {
            peic = Math.round((float) (unit_price * 1.5)) ;
        } else if (portion == 3) {
            peic = (unit_price * 2) ;
        }
        return peic;//计算菜品价格的方法，输入参数是点菜的份额（输入数据只能是1/2/3，代表小/中/大份）
    }
}
class Menu {
    Dish[] dishs = new Dish[10];//菜品数组，保存所有菜品信息
    int count = 0;
    Dish searthDish(String dishName){
        Dish temd = null;
        for(int i=count-1;i>=0;i--){
            if(dishName.equals(dishs[i].name)){
                temd = dishs[i];
                break;
            }
        }
        if(temd==null){
            System.out.println(dishName+" does not exist");
        }
        return temd;
    }//根据菜名在菜谱中查找菜品信息，返回Dish对象。
    Dish addDish(String dishName,int unit_price){
        Dish dh = new Dish();
        dh.name = dishName;
        dh.unit_price = unit_price;
        count++;
        return dh;
    }//添加一道菜品信息
}
class Record {
    int orderNum;//序号\
    //int AntherOrderNum;
    Dish d = new Dish();//菜品\
    int num = 0;
    int portion;//份额（1/2/3代表小/中/大份）\
    //int exist = 1;
    int getPrice(){
        return d.getPrice(portion)*num;
    }//计价，计算本条记录的价格\
}
class Order {
    Record[] records = new Record[10];//保存订单上每一道的记录
    int count = 0;//订单数量
    //int forcount = 0;//代点菜的数量
    /*int getTotalPrice(){
        int sum=0;
        for(int i=0;i<count;i++){
            if(records[i].exist==0)
                continue;
            sum=sum+records[i].getPrice();
        }
        return sum;
    }//计算订单的总价*/
    void addARecord(int orderNum,String dishName,int portion,int num){
        records[count] = new Record();
        records[count].d.name = dishName;
        records[count].orderNum = orderNum;
        records[count].portion = portion;
        records[count].num = num;
        count++;
    }//添加一条菜品信息到订单中。
    /*Record TakeOdfor(int AnotherNUm,int orderNum,String dishName,int portion,int num){
        Record rd2 = new Record();
        rd2.d.name = dishName;
        rd2.orderNum = orderNum;
        rd2.portion = portion;
        rd2.d.num = num;
        rd2.AntherOrderNum = AnotherNUm;
        //forcount++;
        return rd2;
    }*/
    int delARecordByOrderNum(int orderNum){
        if(orderNum>count||orderNum<=0){
            System.out.println("delete error;");
            return 0;
        }else {
            return records[orderNum - 1].getPrice();
        }
    }//根据序号删除一条记录
}
class Table {
    int tableNum;
    String tableDtime;
    int year,month,day,week,hh,mm,ss;
    int sum = 0;//一桌价格 ；
    // boolean f = true;
    Order odt = new Order();
    //Order odre = new Order();
    float discnt = -1;
    void Gettottalprice(){
        if(discnt>0){
            sum = Math.round(sum*discnt);
            System.out.println("table " + tableNum + ": " + sum);
        }else {
            System.out.println("table " + tableNum + " out of opening hours");
        }
    }
    void AheadProcess(String tableDtime){
        this.tableDtime = tableDtime;
        processTime();
        discount();
        //CheckAtime();
    }
 
 
    void processTime(){//处理时间
        String[] temp = tableDtime.split(" ");
        tableNum = Integer.parseInt(temp[1]);
        String[] temp1 = temp[2].split("/");
        String[] temp2 = temp[3].split("/");
 
        year = Integer.parseInt(temp1[0]);
        month = Integer.parseInt(temp1[1]);
        day = Integer.parseInt(temp1[2]);
 
        Calendar c = Calendar.getInstance();
        c.set(year, (month-1), day);
        week = c.get(Calendar.DAY_OF_WEEK);
        if(week==1)
            week = 7;
        else
            week--;
        hh = Integer.parseInt(temp2[0]);
        mm = Integer.parseInt(temp2[1]);
        ss = Integer.parseInt(temp2[2]);
 
    }
    //void CheckAtime(){
    // f= !(discnt < 0);
    // }
    void discount(){
        if(week>=1&&week<=5)
        {
            if(hh>=17&&hh<20)
                discnt=0.8F;
            else if(hh==20&&mm<30)
                discnt=0.8F;
            else if(hh==20&&mm==30&&ss==0)
                discnt=0.8F;
            else if(hh>=11&&hh<=13||hh==10&&mm>=30)
                discnt=0.6F;
            else if(hh==14&&mm<30)
                discnt=0.6F;
            else if(hh==14&&mm==30&&ss==0)
                discnt=0.6F;
        }
        else
        {
            if(hh>=10&&hh<=20)
                discnt= 1.0F;
            else if(hh==9&&mm>=30)
                discnt= 1.0F;
            else if(hh==21&&mm<30||hh==21&&mm==30&&ss==0)
                discnt= 1.0F;
        }
    }
}
import java.util.Calendar;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Menu mu = new Menu();
        Table[] tablemes = new Table[10];
        int j = 0;//菜单数
        int l = 0;//订单数
        int k = 0;//代点菜数
        Dish tt;
        //int sum = 0;
        int cntTable = 0;//桌号
        int count;
        String[] temp;
        int a1,a2,a3,a4,a5;
 
        while (true) {
            String st = sc.nextLine();
            temp = st.split(" ");
            if(st.equals("end"))
                break;
            count = temp.length;
            if (count == 2) {//一个空格
                //String[] temp1 = st.split(" ");
                if (temp[1].equals("delete")) {//第二个为delete
                    a1 = Integer.parseInt(temp[0]);
                    int c = tablemes[cntTable].odt.delARecordByOrderNum(a1);
                    tablemes[cntTable].sum-=c;
                } else {//菜单添加
                    a2 = Integer.parseInt(temp[1]);
                    mu.dishs[j] = mu.addDish(temp[0], a2);
                    j++;
                }
                //continue;
            }
            else if (count == 4) {//三个空格
                //String[] temp2 = st.split(" ");
                if (temp[0].equals("table")) {//桌号
                    cntTable++;//跳过0;
                    l = 0;
                    tablemes[cntTable] = new Table();
                    //tablemes[cntTable].tableDtime = st;
                    tablemes[cntTable].AheadProcess(st);
 
                    System.out.println("table " + cntTable + ": ");
                } else {//增加订单的情况；
                    a3 =Integer.parseInt(temp[0]);
                    a4 = Integer.parseInt(temp[2]);
                    a5=Integer.parseInt(temp[3]);
                    tablemes[cntTable].odt.addARecord(a3, temp[1],a4 , a5);
                    tt = mu.searthDish(temp[1]);
                    if (tt != null) {
                        tablemes[cntTable].odt.records[l].d = tt;
                        int a = tablemes[cntTable].odt.records[l].getPrice();
                        System.out.println(tablemes[cntTable].odt.records[l].orderNum + " " + tt.name + " " +a );
                        tablemes[cntTable].sum +=a;
                    }
                    l++;
                }
                //continue;
            }
 
            else if (count == 5) {//代点菜
                //String[] temp3 = st.split(" ");
                a1 = Integer.parseInt(temp[1]);
                a2 = Integer.parseInt(temp[3]);
                a3 = Integer.parseInt(temp[4]);
                tablemes[cntTable].odt.addARecord( a1, temp[2], a2, a3);
                tt = mu.searthDish(temp[2]);
                if (tt != null) {
                    tablemes[cntTable].odt.records[l].d.unit_price = tt.unit_price;
                    int b = tablemes[cntTable].odt.records[l].getPrice();
                    System.out.println(temp[1] + " table " + tablemes[cntTable].tableNum + " pay for table " + temp[0] + " " + b);
                    tablemes[cntTable].sum += b;
                }
                l++;
            }
            //st = sc.nextLine();
 
        }
        for (int i = 1; i < cntTable + 1; i++) {
            tablemes[i].Gettottalprice();
        }
    }
}