Java Primitive Data Types Quiz

Study Notes

Primitive Data Types

Primitive data types are the basic building blocks of data in Java.
They are not objects.

Numeric Data Types

Integer: Represents whole numbers.
- byte: Stores values from -128 to 127 (8 bits).
- short: Stores values from -32,768 to 32,767 (16 bits).
- int: Stores values from -2,147,483,648 to 2,147,483,647 (32 bits).
- long: Stores values from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 (64 bits).
Floating-point: Represents decimal numbers.
- float: Stores single-precision floating-point numbers (32 bits).
- double: Stores double-precision floating-point numbers (64 bits).

Non-Numeric Data Types

char: Stores single characters (16 bits).
boolean: Represents true or false values.

Data Type Sizes

byte: 8 bits
short: 16 bits
int: 32 bits
long: 64 bits
float: 32 bits
double: 64 bits
char: 16 bits

Decimal Number Considerations

In Java, decimal numbers are treated as double by default.
To represent a decimal number as a float, append the letters f or F to the number.

Initialization

Variables can be initialized using other variables or expressions.
Example:
- int a = 5;
- int b = a;
- int c = 4 * a;

Description

Test your knowledge of Java's primitive data types, including numeric and non-numeric types, their sizes, and characteristics. This quiz covers everything from byte to double data types in Java. Challenge yourself to understand the fundamentals of data representation in Java programming!