Zadanie z informatyki na 20.09.2017

LosowaniaProgram.java

import java.io.File;
import java.io.FileNotFoundException;
import java.util.*;
 
class Main {
  static List<WinPOJO> wins;
  
  public static void main(String[] args){
    wins = new ArrayList<WinPOJO>();
    
    try{
      File file = new File("losowania.txt");
      Scanner scanner = new Scanner(file);
      
      scanner.nextLine();
      
      while(scanner.hasNext()){
        String[] winData = scanner.nextLine().split("\\s+");

        WinPOJO win = new WinPOJO();
        win.setDate(winData[0]);
        int[] nums = new int[6];
          
        for(int i = 1; i <= 6; i++){
          nums[i-1] = Integer.parseInt(winData[i]);
        }
          
        win.setNums(nums);
        //Check if city's name consist of one or two or three words
        if(winData.length == 10){
          win.setCity(winData[7]);
          win.setPrize(Float.parseFloat(winData[8].replace(',', '.')));
          win.setLottery(winData[9]);
        } else if(winData.length == 11) {
          win.setCity(winData[7] + " " + winData[8]);
          win.setPrize(Float.parseFloat(winData[9].replace(',', '.')));
          win.setLottery(winData[10]);
        } else {
          win.setCity(winData[7] + " " + winData[8] + " " + winData[9]);
          win.setPrize(Float.parseFloat(winData[10].replace(',', '.')));
          win.setLottery(winData[11]);
        }
        
        wins.add(win);
      }
      
      //taskA();
      //taskB();
      //taskC();
      //taskD();
    } catch(FileNotFoundException e){
      System.out.println("File not found!");
    }
  }
  
  private static void taskD(){
    int sum = 0;
    
    for(WinPOJO win : wins){
      String[] yearS = win.getDate().split("-");
      int year = Integer.parseInt(yearS[0]);
      
      if(year >= 2000 && year <= 2003){
        sum += win.getPrize();
      }
    }
    System.out.println("Sum: " + sum);
  }
  
  private static void taskC(){
    Map<String, Integer> numbers = new HashMap<String, Integer>();
    
    for(WinPOJO win : wins){
      String[] nums = win.getNums().split(",");
      for(int i = 0; i < nums.length; i++){
        if(numbers.get(nums[i]) == null) {
          numbers.put((String) nums[i], 1);
        } else {
          numbers.replace((String) nums[i], numbers.get((String) nums[i]) + 1);
        }
      }
    }
    
    String num = "";
    int quantity = 0;
    
    Iterator it = numbers.entrySet().iterator();
    while(it.hasNext()){
      Map.Entry pair = (Map.Entry) it.next();
      
      if((Integer) pair.getValue() > quantity){
        num = (String) pair.getKey();
        quantity = (Integer) pair.getValue();
      }
    }
    
    System.out.println("Num: " + num + " Quantity: " + quantity);
  }
  
  private static void taskB(){
    Map<String, Integer> cities = new HashMap<String, Integer>();
    
    for(WinPOJO win : wins){
      if(cities.get(win.getCity()) == null){
        cities.put(win.getCity(), 1);
      } else {
        cities.replace(win.getCity(), cities.get(win.getCity()) + 1);
      }
    }
    
    Iterator it = cities.entrySet().iterator();
    while(it.hasNext()){
      Map.Entry pair = (Map.Entry) it.next();
      if((Integer) pair.getValue() > 10)
        System.out.println(pair.getKey());
      it.remove();
    }
  }
  
  private static void taskA(){
    String cityName = "A";
    float cityPrize = 0.0f;
        
    for(WinPOJO win : wins){
      if(win.getPrize() > cityPrize){
        cityName = win.getCity();
        cityPrize = win.getPrize();
      }
    }
    
    System.out.println(cityName);
  }
  
  private static class WinPOJO {
    String date = "";
    int num1 = 0;
    int num2 = 0;
    int num3 = 0;
    int num4 = 0;
    int num5 = 0;
    int num6 = 0;
    String city = "";
    float prize = 0.0f;
    String lottery = ""; 
    
    private void setDate(String date){
      this.date = date;
    }
    
    private String getDate(){
      return this.date;
    }
    
    private void setNums(int[] nums){
      this.num1 = nums[0];
      this.num2 = nums[1];
      this.num3 = nums[2];
      this.num4 = nums[3];
      this.num5 = nums[4];
      this.num6 = nums[5];
    }
    
    private String getNums(){
      return this.num1 + ","
              + this.num2 + ","
              + this.num3 + ","
              + this.num4 + ","
              + this.num5 + ","
              + this.num6;
    }
    
    private void setCity(String city){
      this.city = city;
    }
    
    private String getCity(){
      return this.city;
    }
    
    private void setPrize(float prize){
      this.prize = prize;
    }
    
    private float getPrize(){
      return this.prize;
    }
    
    private void setLottery(String lottery){
      this.lottery = lottery;
    }
    
    private String getLottery(){
      return this.lottery;
    }
    
    public String toString(){
      return "Date: " + this.date + "\n"
              + "Nums: " + this.num1 + "," + this.num2 + "," + this.num3 + "," + this.num4 + "," + this.num5 + "," + this.num6 + "\n"
              + "City: " + this.city + "\n"
              + "Prize: " + this.prize + "\n"
              + "Lottery: " + this.lottery + "\n";
    }
  }
}