Answers for "type casting java"

typecasting java

Assigning a value of one type to a variable of another type is
known as Type Casting.
Auto-boxing; is a process when you take a primitive value and
assign into wrapper class object.
Un-boxing; is a process when you take Wrapper class object
and convert to primitive.

Java Type Casting

Narrowing Casting (manually) - larger type to a smaller size type
double -> float -> long -> int -> char -> short -> byte

casting in java

Primitive Type casting and Reference Type casting 
PRIMITIVE CASTING:
implicit casting (casting smaller type to larger
int a = 100; double c = a;) 
explicit casting (casting larger to smaller  
byte b = (byte) a; 
REFERENCE CASTING: 
upcasting - implicitly done (casting smaller type to larger)
Collection<Integer> collection = new ArrayList<>(); 
downcasting (cast larger type to smaller one )
List <Integer> list = ( ArrayList ) collection;
FRAMEWORK EXAMPLE:
Up Casting, Down Casting in Multi Browser testing. 
WebDriver, Chrome Driver, Firefox Driver object 
I casted to WebDriver to making reference type. 
Whenever you taking Screenshots, 
whenever executing Java script command.

java casting method

Animal animal = new Dog ();
animal.fetch(); // Compiler error
(Dog) animal.fetch();

typecasting java

Assigning a value of one type to a variable of another type is
known as Type Casting.
Auto-boxing; is a process when you take a primitive value and
assign into wrapper class object.
Un-boxing; is a process when you take Wrapper class object
and convert to primitive.

down casting java

public class Fruit{}  // parent class
public class Apple extends Fruit{}  // child class

public static void main(String args[]) {
    // The following is an implicit upcast:
    Fruit parent = new Apple();
    // The following is a downcast. Here, it works since the variable `parent` is
    // holding an instance of Apple:
    Apple child = (Apple)parent;
}

Java Type Casting

Narrowing Casting (manually) - larger type to a smaller size type
double -> float -> long -> int -> char -> short -> byte

casting in java

Byte-->short-->char-->Int-->long-->float-->double

casting in java

Primitive Type casting and Reference Type casting 
PRIMITIVE CASTING:
implicit casting (casting smaller type to larger
int a = 100; double c = a;) 
explicit casting (casting larger to smaller  
byte b = (byte) a; 
REFERENCE CASTING: 
upcasting - implicitly done (casting smaller type to larger)
Collection<Integer> collection = new ArrayList<>(); 
downcasting (cast larger type to smaller one )
List <Integer> list = ( ArrayList ) collection;
FRAMEWORK EXAMPLE:
Up Casting, Down Casting in Multi Browser testing. 
WebDriver, Chrome Driver, Firefox Driver object 
I casted to WebDriver to making reference type. 
Whenever you taking Screenshots, 
whenever executing Java script command.

java casting method

Animal animal = new Dog ();
animal.fetch(); // Compiler error
(Dog) animal.fetch();

down casting java

public class Fruit{}  // parent class
public class Apple extends Fruit{}  // child class

public static void main(String args[]) {
    // The following is an implicit upcast:
    Fruit parent = new Apple();
    // The following is a downcast. Here, it works since the variable `parent` is
    // holding an instance of Apple:
    Apple child = (Apple)parent;
}

casting in java

Byte-->short-->char-->Int-->long-->float-->double