futar.java

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package futar;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

/**
 *
 * @author admin
 */
public class Main {

    private static List<Fuvar> fuvars = new ArrayList();
    private static PrintStream ps;

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        //UTF8 kimenet
        ps = new PrintStream(System.out, true, "UTF8");

        Excercise1();
        Excercise2();
        Excercise3();
        Map<Integer, Integer> fvrperday = Excercise4();
        Excercise5(fvrperday);
        Excercise6();
        Excercise7();
        Excercise8();
        Excercise9();
    }

    private static void Excercise1() throws FileNotFoundException, IOException {
        ps.print("1. feladat: beolvasás... ");

        BufferedReader file = new BufferedReader(new FileReader("tavok.txt"));

        String line;
        while ((line = file.readLine()) != null) {
            String[] vals = line.split(" ");
            Fuvar fvr = new Fuvar(Integer.parseInt(vals[0]), Integer.parseInt(vals[1]), Integer.parseInt(vals[2]));
            fuvars.add(fvr);
        }
        Collections.sort(fuvars);
        ps.println("OK");
    }

    private static void Excercise2() {
        ps.println("\n2. feladat");
        ps.println(Collections.max(fuvars).getDist() + " km volt a hét első útja!");
    }

    private static void Excercise3() {
        ps.println("\n3. feladat");
        ps.println(Collections.min(fuvars).getDist() + " km volt a hét utolsó útja!");
    }

    private static Map<Integer, Integer> Excercise4() {
        ps.println("\n4. feladat");
        Map<Integer, Integer> days = new HashMap();
        for (int i = 1; i <= 7; i++) {
            days.put(i, 0);
        }
        for (Fuvar fvr : fuvars) {
            int count = days.get(fvr.getDay()) + 1;
            days.remove(fvr.getDay());
            days.put(fvr.getDay(), count);
        }
        ps.print("A ");
        boolean first = true;
        for (Map.Entry<Integer, Integer> e : days.entrySet()) {
            if (e.getValue() == 0) {
                if (first) {
                    first = false;
                } else {
                    ps.print("és ");
                }
                ps.print(e.getKey() + ". ");
            }
        }
        ps.println("napon nem dolgozott.");

        return days;
    }

    private static void Excercise5(Map<Integer, Integer> fvrperday) {
        ps.println("\n5. feladat");
        Map.Entry<Integer, Integer> max = null;
        boolean first = true;
        for (Map.Entry<Integer, Integer> e : fvrperday.entrySet()) {
            if (first) {
                max = e;
                first = false;
                continue;
            }
            if (e.getValue() > max.getValue()) {
                max = e;
            }
        }
        ps.println("A " + max.getKey() + ". napon volt a legtöbb fuvar.");
    }

    private static void Excercise6() {
        ps.println("\n6. feladat");
        int[] kms = new int[7];
        for (Fuvar fvr : fuvars) {
            kms[fvr.getDay() - 1] += fvr.getDist();
        }

        for (int i = 0; i < 7; i++) {
            ps.println((i + 1) + ". nap: " + kms[i] + " km");
        }
    }

    private static void Excercise7() {
        ps.println("\n7. feladat: Kérem írjon be egy távolságot!");
        Scanner scn = new Scanner(System.in);
        try {
            ps.println(new Fuvar(0, 0, Integer.parseInt(scn.nextLine())).getPrice() + " Ft jár érte!");
        } catch (IllegalArgumentException e) {
            ps.println("Hiba! "+e.getMessage());
            Excercise7();
        }

    }

    private static void Excercise8() throws FileNotFoundException {
        ps.print("\n8. feladat: dijazas.txt írása...");
        PrintWriter file = new PrintWriter("dijazas.txt");
        for (Fuvar fvr : fuvars) {
            file.println(fvr.getDay() + ". nap " + fvr.getId() + ". út: " + fvr.getPrice() + " Ft");
        }
        file.flush();
        ps.println(" OK");
    }

    private static void Excercise9() {
        ps.println("\n9. feladat");
        int priceSum = 0;
        for (Fuvar fvr : fuvars) {
            priceSum += fvr.getPrice();
        }

        ps.println("Az egész heti munkájáért " + priceSum + " Ft összeget kap!");
    }
}


/**
 *
 * @author admin
 */
public class Fuvar implements Comparable<Fuvar> {
    //1-7

    private int day;
    //1-40
    private int id;
    //max 30
    private int dist;

    public Fuvar(int day, int id, int dist) throws IllegalArgumentException {
        if (!(dist <= 30)) {
            throw new IllegalArgumentException("helytelen távolság");
        }
        this.day = day;
        this.id = id;
        this.dist = dist;
    }

    @Override
    public int compareTo(Fuvar o) {
        int daycomp = Integer.valueOf(getDay()).compareTo(Integer.valueOf(o.getDay()));
        if (daycomp == 0) {
            return Integer.valueOf(getId()).compareTo(Integer.valueOf(o.getId()));
        }
        return daycomp;
    }

    public int getPrice() {
        if (dist >= 1 && dist <= 2) {
            return 500;
        } else if (dist >= 3 && dist <= 5) {
            return 700;
        } else if (dist >= 6 && dist <= 10) {
            return 900;
        } else if (dist >= 11 && dist <= 20) {
            return 1400;
        } else if (dist >= 21 && dist <= 30) {
            return 2000;
        }
        return 0;
    }

    /**
     * @return the day
     */
    public int getDay() {
        return day;
    }

    /**
     * @return the id
     */
    public int getId() {
        return id;
    }

    /**
     * @return the dist
     */
    public int getDist() {
        return dist;
    }
}