Primitive Data Types In C# Vs Java
The primitive types are predefined by the language and they are named by reserved keywords. They represent the basic types of the language.
C# Vs Java
The most famous primitive data types are: int, string, object, short, char, float, double, char, bool. They are called primitive because they are the main built-in types, and could be used to build other data types.
In C#, primitive data types are actually objects, It means when you write the following code, variable foo is actually an Object.
int foo = 10;
The story is, data types like int, short, char, float, double & bool are actually structs. So, when you create a variable, you are creating an instance from it’s structure.
If you are following from the tutorial on “Understanding the Data types”, You should know that int, short, char, float, double & bool are Value type variables; meaning, they store the actual data rather than a reference to it.
That’s why you can trigger the methods defined in System.Object class using foo variable
int foo = 10;
Ok, Enough, let’s move to Java.
There are 8 primitive data types: int, short, char, float, double, boolean, …etc. Unlike C#, In Java, variables of a primitive type aren’t Objects; they aren’t a struct nor an object instantiated from a class.
You will also notice that String is not a primitive data type in Java, It falls into another category, usually called “Complex Objects or Reference” data types.