Домашно 4.1

1зад. "Обръщение според възраст и пол":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
  Scanner scan = new Scanner(System.in);

  String gander = scan.nextLine();
  int age = scan.nextInt();


  if (age<16) {
    if (gander.equals("male")){
      System.out.println("Master");
    } else if (gander.equals("female")){
      System.out.println("Miss");
    }
  } else if(age>=16) {
    if (gander.equals("male")){
      System.out.println("Ms.");
    } else if (gander.equals("female")){
      System.out.println("Mr.");
    }
  }


  }
}


2зад. "Квартално магазинче":

import java.util.Scanner;


class Main {
  public static void main(String[] args) {

    String product = scan.nextLine() .toLowerCase();
    String town = scan.nextLine() .toLowerCase();
    double quantity = Double.parseDouble(scan.nextLine());
    double price = 0;

    if (town.equals("sofia")){
      if(product.equals("coffee")){
        price = quantity * 0.5;
      } else if(product.equals("water")){
        price = quantity * 0.8;
    } else if(product.equals("beer")){
        price = quantity * 1.2;
    } else if(product.equals("sweets")){
        price = quantity * 1.45;
    } else if(product.equals("peanuts")){
        price = quantity * 1.6;
    }
   }

   if (town.equals("plovdiv")){
      if(product.equals("coffee")){
        price = quantity * 0.4;
      } else if(product.equals("water")){
        price = quantity * 0.7;
    } else if(product.equals("beer")){
        price = quantity * 1.15;
    } else if(product.equals("sweets")){
        price = quantity * 1.3;
    } else if(product.equals("peanuts")){
        price = quantity * 1.5;
    }
   }

   if (town.equals("varna")){
      if(product.equals("coffee")){
        price = quantity * 0.45;
      } else if(product.equals("water")){
        price = quantity * 0.7;
    } else if(product.equals("beer")){
        price = quantity * 1.1;
    } else if(product.equals("sweets")){
        price = quantity * 1.35;
    } else if(product.equals("peanuts")){
       price = quantity * 1.55;
    }
   }

   System.out.println(price);

  }
 }


3зад. "Точка в правоъгълник":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);

     double x1 = Double.parseDouble(scan.nextLine());
     double y1 = Double.parseDouble(scan.nextLine());
     double x2 = Double.parseDouble(scan.nextLine());
     double y2 = Double.parseDouble(scan.nextLine());
     double x = Double.parseDouble(scan.nextLine());
     double y = Double.parseDouble(scan.nextLine());

     if ((x >= x1 && x <= x2) && (y >= y1 && y <= y2)){
       System.out.println("Inside");
     } else {
       System.out.println("Outside");
     }

  }
}



4зад. "Плод или зеленчук":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String product = scan.nextLine();

    boolean isFruit = product.equals("banana") || product.equals("apple") || product.equals("kiwi") || product.equals("cherry") || product.equals("lemon") || product.equals("grapes");

    boolean isVegetable = product.equals("tomato") || product.equals("cucumber") || product.equals("pepper") || product.equals("carrot");

    if (isFruit) {
      System.out.println("fruit");
    } else if (isVegetable) {
      System.out.println("vegetable");
    } else {
      System.out.println("unknown");
    }

  }
}


5зад. "Невалидно число":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    double number = Double.parseDouble(scan.nextLine());

    boolean diapazon = (number >= 100 && number <= 200) || number == 0;

    if (!diapazon) {
      System.out.println("invalid");
    }

  }
}

6зад. "Точка върху страна на триъгълник":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);

     double x1 = Double.parseDouble(scan.nextLine());
     double y1 = Double.parseDouble(scan.nextLine());
     double x2 = Double.parseDouble(scan.nextLine());
     double y2 = Double.parseDouble(scan.nextLine());
     double x = Double.parseDouble(scan.nextLine());
     double y = Double.parseDouble(scan.nextLine());

     if (((x==x1) || (x==x2)) && (y>=y1) && (y<=y2)){
       System.out.println("Border");
     } else if (((y==y1) || (y==y2)) && (x>=x1) && (x<=x2)){
       System.out.println("Border");
     } else {
       System.out.println("Inside/outside");
     }

  }
}


7зад. "Магазин за плодове":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String plod = scan.nextLine();
    String day = scan.nextLine();
    String quantity = scan.nextLine();
    String price = scan.nextLine();


    if (day.equals("monday")) || (day.equals("tuesday")) || (day.equals("wednes")) || (day.equals("thurday")) || (day.equals("friday")){
      if (fruit.equals("banana")){
        price = quantity * 2.50;
      } if (fruit.equals("apple")){
        price = quantity * 1.20;
      } if (fruit.equals("orange")){
        price = quantity * 0.80;
      }
    } else if (day.equals("saturday")) || (day.equals("sunday")){
      if (fruit.equals("banana")){
        price = quantity * 2.70;
      } if (fruit.equals("apple")){
        price = quantity * 1.25;
      } if (fruit.equals("orange")){
        price = quantity * 0.90;
      }
    }

   System.out.println(price);
  }
}

11зад. "Кено":

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String type = scan.nextLine();
    int redove = Integer.parseInt(scan.nextLine());
    int coloni = Integer.parseInt(scan.nextLine());
    int mesta = redove * coloni;
    double dohodi = 0;

    switch (type){
      case "premiere": dohodi = mesta * 12; break;
      case "normal": dohodi = mesta * 7.50; break;
      case "discount": dohodi = mesta * 5; break;
    }
    System.out.println(dohodi);

  }
}