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HomeJava8 Examples of Primitive Information Sorts In Java (int, lengthy, boolean, float,...

8 Examples of Primitive Information Sorts In Java (int, lengthy, boolean, float, double, byte, char, and quick)

Hey guys, Information sorts are first few issues it is best to study if you begin studying a programming language and on the subject of study Java, there are 8 primitive knowledge sorts which it is best to know. These are divided into three classes, numeric, textual content, and boolean values. Numeric knowledge sorts might be additional divided into two like pure numbers and floating pointing numbers. However, Earlier than we get to an inventory of the ten examples of primitive knowledge sorts
in Java, let me let you know a bit of bit extra about what the primitive knowledge
sorts are.  There are primarily 8 primitive knowledge sorts in Java.
They’re int, byte, quick, lengthy, float, double, boolean, and char. The
primitive knowledge sorts usually are not thought-about objects and signify uncooked
values. These primitive knowledge sorts are additionally saved instantly on the

Java, int is used for a 32-bit integer worth, char is used for a 16-bit
character, boolean is used for a real or false worth, quick is used for
a 16-bit integer worth, and so forth and so forth. 

On this checklist, we’ve got compiled all the primitive knowledge sorts in Java together with some examples. Maintain studying to seek out out extra. 

1. int

is definitely probably the most generally used primitive knowledge sorts in Java.
It is usually often called an integer and might maintain a variety of
non-fractional quantity values. What it is advisable perceive is that Java
shops int utilizing 32 bits of reminiscence. What this implies is that it could
signify values from -2,147,483,648 (-231) to 2,147,483,647 (231-1).
Sounds wonderful, proper?

It is vitally easy to declare an int in Java. 

default, the worth of an unassigned int shall be 0. It is usually doable
to outline an int in a technique. However then, you have to assign a price to the
variable earlier than you should use it. 

You may as well simply carry out
any of the arithmetic operations on int. However you want to remember
that decimal values shall be faraway from the variable worth if you
carry out calculations. 

2. byte

byte is similar to an int. The important thing distinction is {that a} byte solely
takes up 8 bits of reminiscence. As you may see, we name it a byte as a result of it
is principally made up of 8 bits. For the reason that reminiscence measurement of a byte is
actually small, it could solely retailer values between -128 (-27) and 127 (27 –

It is vitally simple to declare a byte in Java:

primitive data types in Java with range and size

3. quick

can consider quick as principally a compromise between int and byte. A
quick is made up of 16 bits of reminiscence; so it’s bigger than a byte however
smaller than an int. A brief is ready to retailer values from -32,768(-215)
to 32,767(215 – 1). You possibly can declare a brief in Java like this:

quick s = 20_020;

quick s;

The default worth of a brief can be 0.

4. lengthy

lengthy is one other primitive knowledge kind that’s associated to int. You possibly can
consider lengthy as principally the large brother of int. An extended makes use of a
huge 64 bits of reminiscence. This makes it doable for lengthy to carry a
bigger set of doable values. An extended can retailer values
between -9,223,372,036,854,775,808 (-263) and 9,223,372,036,854,775,807
(263 – 1).

The default worth of a protracted can be 0. You possibly can declare a protracted in Java with the next syntax:

lengthy l = 1_234_567_890;

lengthy l;

8 Examples Of Primitive Data Types In Java

5. float

float kind is used to signify primary fractional numbers in Java. It’s
very exact as much as 6 decimal factors. After that. the quantity can develop into
much less exact and extra of an estimate. 

Similar to int, a float
can be saved in 32 bits of reminiscence. However because it offers with decimal
factors, the vary of a float is completely different from an int. It may retailer
values between 1.40239846 x 10-45, and three.40282347 x 1038.

You possibly can see beneath tips on how to declare a float kind in Java:

float f = 3.145f;

float f;

6. double

double kind in Java might be seen as the large brother of the float kind.
It’s saved in 64 bits of reminiscence and presents double the precision within the
case of decimal numbers. It may signify a a lot bigger vary of
doable numbers. However, the precision of a float will not be limitless. The
vary of a double kind in Java is between  4.9406564584124654 x 10-324
and 1.7976931348623157 x 10308. That vary will also be constructive or

It is vitally simple to declare a double in Java:

double d = 3.13457599923384753929348D;

double d;

Similar to float, the default worth of a double kind is 0.0. 

how to convert primitive data types in Java

7. boolean

boolean is definitely probably the most easy primitive knowledge sorts in
Java. As it’s possible you’ll already know, a boolean can include solely 2 values: true
or false. A boolean is saved in only one bit of knowledge. However, for
comfort, Java shops a boolean in a single byte as an alternative of only a

It is vitally simple to declare a boolean in Java:

boolean b = true;

boolean b;

default worth of a boolean is fake. The boolean kind is definitely the
cornerstone of controlling the stream of packages. You may as well use the
boolean kind on different operators. 

8. char 

we come to the ultimate entry within the checklist of primitive knowledge sorts in Java:
char. It is usually known as a personality and is saved in 16 bits of reminiscence
that signify a Unicode-encoded character. The vary of a char kind is
from 0 to 65,535. This represents u0000′ to ‘uffff’ in Unicode. 

You possibly can declare a char in Java with the next syntax:

char c=”a”;

char c = 65;

char c;

you might be defining variables in Java, you should use any literal character
and it’ll routinely get reworked into the respective Unicode
encoding. The default worth of a personality kind is /u0000′. 


That is all concerning the 8 important knowledge sorts in Java. It is should for each Java developer to not simply find out about these knowledge sorts but additionally how and when to make use of them. You must also know what are their measurement like what number of bits or bytes they take to retailer values in addition to what are their most and minimal vary. If you do not know these primary element you then can not select the best knowledge kind for a given requirement  and never get the utmost efficiency you need in few instances. 

However, if you error, its higher to error on massive measurement like selecting lengthy as an alternative of int as a result of that will solely waste reminiscence however not produce incorrect outcome. On opposite, for those who select a smaller kind however your values are bigger than they could overflow and it’s possible you’ll get incorrect outcome. This is likely one of the essential level and that is why I’m stressing that right here. The most effective factor is to make use of the proper and most applicable knowledge kind to write down strong program and get greatest efficiency in java. 

you’ve gotten it. I’m fairly positive that you’ve now coated all of the fundamentals
relating to primitive knowledge sorts in Java. When you preferred this checklist of 8
examples of primitive knowledge sorts in Java, be at liberty to share it with
your family and friends. 

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Thanks for studying this text to this point. When you discovered this text value studying then please share with your pals and colleagues. When you’ve got any questions or doubts be at liberty to ask in feedback. 



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