string casting java code example

Example 1: casting in java

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

Example 2: 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.