Data Types in Java

Data Types
A data type specifies what kind of data a variable can hold. Java is a strongly typed language, which means every variable must be declared with a data type.

Primitive Data Types
Primitive data types store simple and single values.

• int is used to store whole numbers such as 10, 25, or -5.
• float is used to store decimal values and must end with f, for example 10.5f.
• double is used to store large or precise decimal values.
• char stores a single character like 'A' or '9'.
• boolean stores only two values: true or false.

Example:

int age = 20;
float percentage = 85.5f;
double salary = 45000.75;
char grade = 'A';
boolean isPassed = true;

Non-Primitive Data Types

• Non-primitive data types are used to store multiple values or complex data.
• String is used to store text.
• Arrays store multiple values of the same type.
• Classes and Objects represent real-world entities.

Example:

String name = "Java Programming";