https://www.baeldung.com › java-type-casting

An overview of type casting in Java, covered with simple and easy to understand examples.

http://www.javacoding.fr › le-cast-en-java-downcasting-et-upcasting ›

Le cast est le fait de forcer le compilateur à considérer une variable comme étant d’un type qui n’est pas le type déclaré ou le type réel de la variable. Il faut savoir que Java est un langage fortement typé. En effet, il permet de s’assurer que les conversions entre types sont correctes :

https://stackoverflow.com › questions › 5306835

The example you are referring to is called Upcasting in java. It creates a subclass object with a super class variable pointing to it. The variable does not change, it is still the variable of the super class but it is pointing to the object of subclass.

https://www.w3schools.com › java › java_type_casting.asp

Type casting is when you assign a value of one primitive data type to another type. In Java, there are two types of casting: Widening Casting (automatically) - converting a smaller type to a larger type size. byte -> short -> char -> int -> long -> float -> double.

https://www.javatpoint.com › java-cast-object-to-class

In Java, casting an object involves converting an object from one class type to another, provided there is a valid inheritance relationship between the classes. The casting process allows the program to treat an object as an instance of a different class than its original class.

https://logfetch.com › java-cast-objects-in-stream

Stream<Object> stream = Stream.of(objects); 1. Using manual casting #. We can manually cast each object in the stream. stream.map(obj -> (Person) obj); We can also filter out objects that aren’t of that type. stream.filter(obj -> obj instanceof Person) .map(obj -> (Person) obj); 2. Using cast() #.

https://www.baeldung.com › java-convert-object-to-map

In this article, we explored various approaches, such as reflection, Jackson, and Gson, that enable us to convert Objects to Java Maps, facilitating seamless integration and manipulation of object data in diverse scenarios.

https://www.geeksforgeeks.org › class-type-casting-in-java

Class Type Casting in Java. Typecasting is the assessment of the value of one primitive data type to another type. In java, there are two types of casting namely upcasting and downcasting as follows: Upcasting is casting a subtype to a super type in an upward direction to the inheritance tree.

https://docs.oracle.com › javase › 8 › docs › api › java › lang › Object.html

The returned Class object is the object that is locked by static synchronized methods of the represented class. The actual result type is Class<? extends |X|> where |X| is the erasure of the static type of the expression on which getClass is called. For example, no cast is required in this code fragment: Number n = 0;

https://docs.oracle.com › en › java › javase › 22 › docs › api › › java.base › java › lang › Object.html

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by HashMap. The general contract of hashCode is: . Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the ...