Any coding language’s most crucial foundation is its data types. It is the most critical concept for every newcomer. The data type is required to express the kind, nature and set of operations associated with the value it stores.
Data types in Java are the most fundamental and first thing you should learn before going to other Java topics. These are pretty helpful in all aspects of Java, whether you’re writing basic code or developing complex software or applications. This blog will go over everything you need to know about data types in Java. And I’m confident that once you’ve finished reading this post, you won’t have any problems with the subject.
What are Data Types?
A data type is a data property in computer science that defines how the programmer intends to utilize the data. A data type always limits the possible values for an expression, like a function or a variable. It specifies how that data type’s values are kept in memory and what actions they may take. A few examples of data types are integers, strings, floating-point numbers, characters, and other storage types.
For instance, if a variable’s data type is “int,” it can only contain integer values. You must first understand the different sorts of languages before going to Java Data types.
Languages Can Divide Into Two Categories
The first is a “statically typed language.” Each variable’s data type must declare at initiating time. Before we can utilize a variable, we must specify its type. We can’t modify the data type once we declare the variables it just proclaimed. Except for booleans, they can transform to other types via explicit type casting in Java.
C, C++, Scala, C sharp, and Java are examples of statically typed languages. If we write int num = 5, for instance, we indicate that the variable num is of integer type and retains a numerical value, and its kind will always be the same. The second type of language is dynamically typed. The data types in this language can vary over time, and the variables validate in real-time.
Some dynamically typed programming languages are Python, Ruby, Erlang, VB, Perl, and PHP.
Data types are classified into two groups based on the features they possess:
- Types of Primitive Data
- Types of Non-Primitive Data
Primitive Data Types: The computer language defines a primitive data type. It contains no other methods and specifies the type and size of variable values. It has no additional plans and determines the type and size of varying values. Primitive data types are also named Intrinsic data types. Primitive data types in Java can also use for operations.
Non-Primitive Data Types: The programmer forms these data types rather than defined by the computer language. Because they relate to a memory address where the data is stored, they also consider “object references” “reference variables.”
Let’s take it a step further and look into Primitive Data Types and non-primitive data in more depth.
Primitive Data Types in Java
As the name implies, the primitive data types are predefined in the computer language. Primitive data types consider basic Java data types. Float, byte, char, short, char, int, long, boolean, and double are Java’s eight primitive data types.
These data types are the most useful for data manipulation in Java. The limitation of primitive data types is that they can only carry the same type and have a fixed size. Primitive data types are also named Intrinsic data types. Primitive data types in Java can also use for operations.
Non-Primitive Data Types in Java
The phrase “non-primitive data type” refers to data types that include “a variable’s memory location.” Non-primitive data types in Java, in contrast to primitive data types, are neither specified nor produced by Java. Instead, they develop by programmers.
They are also called reference data types because they can’t keep the value of a variable directly in memory. Non-primitive data types hold a reference or address (memory location) to the matter rather than the item itself. They can use methods to do a specific task. It’s also possible for them to be null.
Let’s Wrap It Up!
Programming languages developed on the foundation of data types. Before going directly to Java ideas, you must first understand Java data types. A solid grasp of data types will assist you in writing a basic program or developing any application or software. We hope the information we have given above is enough for you to understand data types in Java.
Summing up, these are major Data types in Java. It’s impossible to classify different inputs and variables without data types. Hence a definite concept of data types is a must for coding in Java.