Whats the difference between subClass sc = new subClass() and superClass sc = new subClass?

Question

class superClass {}

class subClass extends superClass{}

public class test
{

    public static void main()

{

    superClass sc1 = new subClass();
    subClass sc         


        

Answer 1

In addition to the above answers, because the constructed object is really an object of type SubClass you can cast it to SubClass and call the methods:

SuperClass superClass = new SubClass();
superClass.method1();
((SubClass)superClass).method2();