After knowing primitive data types and Java rules of Data Type Casting (Type Conversion), let us cast char to int as an example. The int takes 4 bytes of memory and char takes 2 bytes of memory. 2 bytes memory value can be assigned to a 4 bytes value and is done implicitly by JVM. …
A data type informs the compiler what type of data a variable is permitted to store. Data type declaration should be done when the variable is declared. It is required in Java as Java is a strongly typed language. The data type indicates what possible values that can be assigned to variable and possible operations …
