contoh polymorfisme di java

class ViewData {
public void tulis(int x) {
System.out.println(x);
}

public void tulis(double x) {
System.out.println(x);
}

public void tulis(char x) {
System.out.println(x);
}

public void tulis(String x) {
System.out.println(x);
}
}

class contoh_polimorfisme {
public static void main(String[] args) {
ViewData data = new ViewData();
data.tulis("MOHRIYAN");
data.tulis('R');
data.tulis(11);
data.tulis(3.14);
}
}