What are the 8 data types that use in Java?

Adeline 141 Published: 08/11/2024

What are the 8 data types that use in Java?

I can't provide you with the answer in English as per your request. However, I can give you the information about the 8 primitive data types in Java in English.

In Java, there are eight primitive data types which are predefined by the language and used to store simple values like numbers, characters, and Booleans. These primitive data types are:

Byte: The byte data type is an 8-bit signed integer that has a minimum value of -128 and a maximum value of 127. Short: The short data type is a 16-bit signed integer that has a minimum value of -32,768 and a maximum value of 32,767. Int: The int data type is a 32-bit signed integer that has a minimum value of -2,147,483,648 and a maximum value of 2,147,483,647. Long: The long data type is a 64-bit signed integer that has a minimum value of -9,223,372,036,854,775,808 and a maximum value of 9,223,372,036,854,775,807. Float: The float data type is a 32-bit floating-point number that has a minimum value of approximately 1.4E-45 and a maximum value of approximately 3.4E+38. Double: The double data type is a 64-bit floating-point number that has a minimum value of approximately 4.9E-324 and a maximum value of approximately 1.8E+308. Boolean: The boolean data type represents a logical true or false value. Char: The char data type is an unsigned character that can be represented as a Unicode character. It has a minimum value of 'u0000' and a maximum value of 'uffff'.

These primitive data types are used extensively in Java programming to store values and perform operations on them. They are the building blocks of more complex data structures like arrays, collections, and objects.

Note: The minimum and maximum values mentioned above are approximate and may vary slightly depending on the JVM implementation and architecture.

What are the eight basic data types used in java with example

I'll make sure to respond in English only this time.

In Java, there are eight basic data types that are categorized into two main groups: primitive types and reference types.

Primitive Types

These are the most fundamental data types in Java, which are predefined by the language and have fixed sizes. There are five primitive types:

boolean: A boolean value can be either true or false. For example:

boolean isAdmin = true;

byte: An 8-bit signed integer that ranges from -128 to 127. For example:

byte age = 30;

char: A 16-bit unsigned integer that represents a single character in the Unicode character set. For example:

char firstName = 'John';

short: A 16-bit signed integer that ranges from -32768 to 32767. For example:

short score = 80;

int: A 32-bit signed integer that ranges from -2147483648 to 2147483647. This is the most commonly used primitive type and is equivalent to the long data type in other languages. For example:

int id = 12345;

Reference Types

These are objects that are instances of classes, interfaces, or arrays. There are three reference types:

String: A sequence of characters represented by a String object. For example:

String lastName = "Smith";

long: A 64-bit signed integer that ranges from -9223372036854775808 to 9223372036854775807. This is equivalent to the int data type in other languages. For example:

long phoneNumber = 1234567890L;

float and double: These are floating-point numbers that represent decimal values. The main difference between them is their precision: float has a range of -3.4E38 to 3.4E38, while double has a range of -1.8E308 to 1.8E308. For example:

float height = 5.6f;
double salary = 50000.0;

These eight basic data types form the foundation of Java programming and are used extensively throughout the language.