Upcasting and downcasting in java

Upcasting in java

Upcasting is a type of object typecasting in which a child object is typecasted to a parent class object. By using the Upcasting, we can easily access the variables and methods of the parent class to the child class. Here, we don't access all the variables and the method. We access only some specified variables and methods of the child class. Upcasting is also known as Generalization and Widening.

Upcasting and downcasting in java

A process of converting one data type to another is known as Typecasting and Upcasting and Downcasting is the type of object typecasting. In Java, the object can also be typecasted like the datatypes. Parent and Child objects are two types of objects. So, there are two types of typecasting possible for an object, i.e., Parent to Child and Child to Parent or can say Upcasting and Downcasting.

Downcasting in java

Downcasting is casting to a subtype, 
going down in the inheritance tree.
It is done to access sub class features.
It has to be done manually

(TakeScreenShot)driver).takeScreenShot();

Similar codes

1 vote268 views1 answer
Comparable
Java
0 vote249 views1 answer
Procedure java
Java
0 vote252 views1 answer
What went wrong: Execution failed for task ':app:processDebugMainManifest'. > Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @1ce90e66
Java
2 votes256 views1 answer
What is the difference between sc.nextLine() and sc.next() in java
Java
1 vote239 views1 answer
Java parse string to list using gson
Java
0 vote230 views1 answer
Java filedialog
Java
0 vote244 views1 answer
Hanoï recursive algorithm
Java
0 vote271 views1 answer
The import org.jdom cannot be resolved
Java
2 votes261 views2 answers
How to set background color in jframe in java
Java
0 vote199 views1 answer
How to sort 2d array in java using stream api
Java