‫Welcome back.
‫In this video, we'll learn about Java data types.
‫Data types are used to define the type of data that a variable can hold.
‫Each data type has specific characteristics and uses.
‫Java has two categories of data types.
‫Primitive data types and reference or non primitive data types.
‫We'll start with the primitive data types.
‫Primitive data types are the basic data types in Java, and they represent simple values.
‫There are eight primitive data types in Java.
‫Byte.
‫This data type stores whole numbers from -128 to 127.
‫It's used when memory is concerned and you need to store small numbers.
‫The short this data type stores whole numbers from this number to this number.
‫It's used when you need a larger range than byte int this data type stores whole numbers from this number
‫to this number.
‫It's the most commonly used data type for whole numbers.
‫Long This data type stores very large.
‫Whole numbers from this number to this number.
‫You need to add an letter L or L small letter at the end of the number to indicate it's a long value.
‫Float.
‫Float is a data type that stores decimal numbers with single procession.
‫You need to add an F or f at the end of the number to indicate it's a float value.
‫Double this data type stores decimal numbers with double precision.
‫It's the most commonly used data type for decimal numbers.
‫Car.
‫This data type stores single characters like letters or symbols using single quotes.
‫The boolean.
‫This data type stores only two values true or false representing boolean logic.
‫In the next videos we'll deep dive into these primitive data types.
‫Now let's take an overview about the non primitive data types.
‫Non primitive or the referenced data types are used to refer to objects.
‫An object is a complex data type that represents a real world entity and has its own properties and
‫methods.
‫Examples of reference data types include array, which is used to store multiple values of the same
‫type in a single variable string.
‫This data type is used to store a sequence of characters, which is a text.
‫It's a commonly used class in Java class classes are user defined reference data type that allow you
‫to create objects with their own properties and methods.
‫These are the main data types in Java.
‫Using the appropriate data type for your variables is essential for efficient memory usage and correct
‫representation of data in your programs.