In Java programming, a literal means a string that consists of a fixed or set value in the source code. Java literals are the way that provide you to set certain values throughout the course of your programs. A literal is text that may have its content copied to a variable or is used as a constant expression.
Here are the different types of literals in Java:Here are the different types of literals in Java:
Integer Literals
Floating-Point Literals
Character Literals
String Literals
Boolean Literals
Null Literals
I will now briefly describe each type of literal and provide an example for a better understanding.
1. Integer Literals
An integer literal is used where there is need to represent an integer figure from 0 to a positive whole number. They can be expressed in different number systems:They can be expressed in different number systems:
Decimal (Base 10): This particular form is by far the most widespread, it involved simple whole numbers from 0 through 9.
Octal (Base 8): Uses digits 0-7 and a leading 0.
Hexadecimal (Base 16): Uses digits 0-9 and letters A-F, and a leading 0x or 0X.
Binary (Base 2): Uses digits 0-1 and a leading 0b or 0B (available from Java 7 onwards).
2. Floating-Point Literals
Floating-point literals represent decimal numbers and can be expressed in either standard decimal notation or scientific notation:
Decimal Notation:
Scientific Notation:
f or F:
3. Character Literals
Character literals represent single characters and are enclosed in single quotes:
4. String Literals
String literals represent a sequence of characters enclosed in double quotes:
5. Boolean Literals
Boolean literals represent the values true and false:
6. Null Literals
The null literal represents a null reference:
Examples
Here are some examples demonstrating the use of different types of literals in Java:
