Understand Data Types In Java

In this video, I discuss Data Types In Java

A data type is a set of values that share certain properties together and have a set of operations that can be performed on them. Data types are used when declaring variables in your code so its function is to determine the type and quantity of value a variable can hold.

So, based on the data type of a variable, the operating system allocates memory and decides what can be stored in the reserved memory. Data types allow you to store different kinds of values in your program, such as integers, decimals, or characters in these variables. There are two data types available in Java :

• Primitive Data Types There are eight primitive data types supported by Java. Primitive data types are predefined by the language and named by a keyword. Example of primitive data types byte, short, int, long, float, double, char, boolean

• Non Primitive Data Types Non-Primitive Data Types: These data types are not actually defined by the programming language but are created by the programmer. Examples of non-primitive types include Strings, Arrays, Classes, Interface.

The difference between primitive and non-primitive data types are as follows: • Primitive types are predefined in Java. Non-primitive types are created by the programmer and is not defined by Java. • Non Primitive types can be used to call methods to perform certain operations, while primitive types cannot. • A primitive type always has a value, whereas non-primitive types can be null. • A primitive type starts with a lowercase letter, while non-primitive types start with an uppercase letter. • The size of a primitive type depends on the data type, while non-primitive types have all the same size.

Links to my other YouTube videos

Reserved words in Java -- https://youtu.be/KhAgNbiQN6M Identifiers in Java -- https://youtu.be/fS972aWy3ko Writing Comments in Java -- https://youtu.be/AQtGLIMz3aQ Output Statements -- https://youtu.be/4hDV0i4sS9g ... https://www.youtube.com/watch?v=zw4ei5ly_i8