selenium hierarchy
package SpecialConcepts;
class SuperClass1 {
public void super_print() {
System.out.println("Super Print");
}
public void super_show() {
System.out.println("Super Show");
}
}
public class SubClass1 extends SuperClass1 {
public void sub_print() {
System.out.println("Sub Print");
}
public void sub_show() {
System.out.println("Sub Show");
}
public static void main(String[] args) {
/* Child class object up cast to super class reference. Using super class reference , sub class object can not use methods
of sub class despite of being object of that class. Up casting restricts access or visibility of methods downwards */
SuperClass1 superClass1 = new SubClass1();
superClass1.super_print();
superClass1.super_show();
/* To access sub class methods, super class reference needs to be downcast to sub class reference. Note here we can down cast
to a up cast reference only. */
SubClass1 subClass1 = (SubClass1)superClass1;
subClass1.sub_print();
subClass1.sub_show();
}
}