public class test {

	public static void main(String[] args) {
        Student petar = new Student();
        petar.ime = "Petar";
        petar.fakultet = "PMF";
        petar.jaSam();
        petar.studiram();

        Gradjanin komsija = petar; // siri tip = uzi tip 
        komsija.jaSam();
        //  g.studiram(); 

        Gradjanin.jaSamStatic(); // Ja sam gradjanin 
        Student.jaSamStatic(); // Ja sam student
        komsija.jaSamStatic(); // Ja sam gradjanin
        					   // warning: The static method jaSamStatic() from the type Gradjanin should be accessed in a static way
        petar.jaSamStatic(); // Ja sam student
        
        
        Student brucos = (Student)komsija; // uzi tip = (uzi tip) siri tip (kastovanje)   int i = (int) 12.345;
        brucos.studiram();

        Gradjanin dobrovoljac = new Gradjanin();
        Student diplomac = (Student)dobrovoljac; // run-time greska
        diplomac.studiram();
        
	}
}
class Gradjanin
{
    public String ime;
    public void jaSam()
    {
        System.out.println("Ja sam gradjanin");
    }
    public static void jaSamStatic()
    {
    	System.out.println("Static: Ja sam gradjanin");
    }
}
class Student extends Gradjanin {
    public String fakultet;
    public void jaSam() {
    	System.out.println("Ja sam student");
    }
    public static void jaSamStatic()
    {
    	System.out.println("Static: Ja sam student");
    }    
    public void studiram() {
    	System.out.println("Studiram " + fakultet);
    }
}