Upcasting in Java | Java Interview Question 24 | Pahadi Coder

Опубликовано: 03 Март 2023
на канале: Pahadi Coder

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In this video we have discuss Upcasting in Java
Up-casting in Inheritance?
The reference variable of super class refers to the object of sub class is called Up-Casting in java
Parent p = new Child();
a) We can access everything from super class and from sub class only overridden method, means Overridden method will called from sub class.

b) We cannot access the own properties of sub-class
c) If both the class have common instance variable then Super class variable will come because variable calling is depend on type. Means we cannot override variables.
d) It is same as Left join of MySQL.
e) Down-Casting is vice-versa of up-casting but it not supported in java.

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