public class HelloWorld{

     public static void main(String []args){
        
        // Zad. 01-1
        System.out.println("\nZad. 01-1");
        System.out.println("Hello World!\n");
        
        // Zad. 01-2
        System.out.println("\nZad. 01-2");
        System.out.print("Raz... ");
        System.out.print("Dwa.. ");
        System.out.print("Trzy..\n");
        System.out.println("Baba Jaga patrzy!\n");
        
        // Zad. 01-3
        System.out.println("\nZad. 01-3");
        System.out.println(1234+56);
        System.out.println(1234-56);
        System.out.println(56-1234);
        System.out.println(1234*56);
        System.out.println(1234/56);
        System.out.println(56/1234);
        
        // Zad. 01-4
        System.out.println("\nZad. 01-4");
        System.out.println(17);
        System.out.println(0b10001);
        System.out.println(021);
        System.out.println(0x11);
        
        // Zad. 02-1
        System.out.println("\nZad. 02-1");
        System.out.println(0b01001000);
        System.out.println(0110);
        System.out.println(0x48);
        
        // Zad. 02-2
        System.out.println("\nZad. 02-2");
        System.out.println(54);
        System.out.println(Integer.toBinaryString(54));
        System.out.println(Integer.toOctalString(54));
        System.out.println(Integer.toHexString(54));
        
        // Zad. 02-3
        System.out.println("\nZad. 02-3");
        System.out.println(7%2);
        System.out.println(30%10);
        System.out.println(7^2);
        System.out.println(11&8);
        System.out.println(26>>2);
        System.out.println(36<<3);
        System.out.println(39&13);
        System.out.println(12|18);
        System.out.println(40>>4);
        System.out.println(27^16);
        
        // Zad. 02-4
        System.out.println("\nZad. 02-4");
        System.out.println(4|1);
        System.out.println(4|2);
        System.out.println(4|3);
        System.out.println(4|8);
        System.out.println(4|0);
        System.out.println(4|9);
        
        // Zad. 02-5
        System.out.println("\nZad. 02-5");
        System.out.println(5&1);
        System.out.println(5&4);
        System.out.println(5&5);
        System.out.println(5&0);
        
        // Zad. 02-6
        System.out.println("\nZad. 02-6");
        System.out.println(7|8); // == 15
        System.out.println(7&4); // == 4
        System.out.println(7&3); // == 3
        
        // Zad. 03
        System.out.println("\nZad. 03-I");
        
        int a = 1;
        System.out.println(a);
        
        int a1;
        // int 2b;
        // int @c;
        // int args;
        // int null;
        
        char charValue = 'a';
        char charvalue = 'b';
        // Nazwy zmiennych inne od siebie wielkoscia liter sa inne
        System.out.println(charvalue-charValue);
        
        System.out.println( ( true && !true ) || (true && !true) );
        System.out.println( ( true && !false ) || (false && !true) );
        System.out.println( ( false && !true ) || (true && !false) );
        System.out.println( ( false && !false ) || (false && !false) );
        
        // int x = 2 * 5 + 3 * 4 - 8; // == 14
        int x = 2 * (5 + 3) * 4 - 8; // == 56
        System.out.println(x);
        
        /*
        java.util.Scanner in = new java.util.Scanner(System.in);
        int studentId = in.nextInt();
        System.out.println("Hello s" + studentId);
        */
        
        float aa = 10f;
        System.out.println((int)aa/3 + " r" + (int)aa%3);
        
        int w = 0;
        boolean czyPada = false;
        if(czyPada)
            w = 5;
        else
            w = 8;
        System.out.println(w);
        
        boolean czySwieciSlonce = false;
        if(czyPada && czySwieciSlonce)
            System.out.println("tecza");
        else if(czyPada && !czySwieciSlonce)
            System.out.println("plucha");
        else if(!czyPada && czySwieciSlonce)
            System.out.println("slonecznie");
        else if(!czyPada && !czySwieciSlonce)
            System.out.println("pochnmurno");
        
        byte pada = 0b0001;
        byte slonce = 0b0010;
        byte pogoda = 0;
        
        /*
            java.util.Random g = new java.util.Random();
            double r = g.nextDouble();
        */
        
        float r = 0.7f;
        if(r > 0.5)
            pogoda += slonce;
        if(r > 0.5)
            pogoda += pada;
        
        System.out.println(pogoda);
        
        switch(pogoda)
        {
            case 0:
                System.out.println("pochmurno");
                break;
            case 1:
                System.out.println("plucha");
                break;
            case 2:
                System.out.println("slonecznie");
                break;
            case 3:
                System.out.println("tecza");
                break;
        }
        
        // Scanner i Random wykomentowalem bo nie mam aktualnie na komputerze
        // javy a predkosc internetu ledwo pozwala mi na wyklady wiec pobiore
        // od razu po
     }
}