5/21/2023

Main data types in the Java programming language 2023

 Here are the main data types in the Java programming language:


Primitive Data Types:


- int: Stores integers. Example:


`int age = 30;`


- double: Stores floating point numbers. Example:


`double pi = 3.14;`  


- char: Stores a single character. Example:


`char letter = 'A';` 


- boolean: Stores true or false values. Example: 


`boolean isEligible = true;`


- byte: Stores small integers. Example:


`byte marks = 100;`


- float: Stores single-precision floating point numbers. Example:


`float price = 99.99f;`


- long: Stores long integers. Example: 


`long phoneNumber = 9999999999l;`


- short: Stores small integers. Example:


`short examMarks = 80;`


Reference Data Types:


- String: Stores text. Example:


`String name = "John";`


- Arrays: Stores multiple values of the same type. Example:


`int[] marks = {90, 95, 80};`


- Classes: User-defined data types. Example:


`class Student { 

    String name;

    int age; 

}`


- Interfaces: Defines behaviors that classes can implement. Example:


`interface Speakable {

   void speak(); 

}`


- Any valid class or interface reference:


`Student student = new Student();`


These Java data types determine how variables are stored in memory and operated on. The compiler allocates appropriate memory for each variable based on its data type.Lesen Sie verwandte Artikel

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Hope this helps! Let me know if you have any other questions.

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