Literals || How many types literals || books1263

Literals

Literals are constants that do not change and may be assigned to variables.

      There are seven types that can be used in java:

1. Integer literals
2. Floating literal
3. Boolean literal
4. Character literal
5. String literal
6. Null literal
7. Class literal

Integer Literal:

Integer-literal are used to represent whole numbers. It may be a positive or a negative number without a point or comma(,).

  Integer are three types that can be represented in Java:

1. Decimal(base 10)
2. Octal(base 8)
3. Hexadecimal(base 16)

Floating Literals:

Floating literals are used to represented fractional numbers i.e. number with a point.

  In exponential format a real number is divided into two parts: mantissa and exponent.

The mantissa represents the integer part and exponent represents 10 to the power of a number.

Boolean Literals

Boolean literals are used as an indicator to represent a success or failure i.e. true or false.

Character Literals:

Character literal are always enclosed within single quotes. These characters can directly be printed on an output device ( like terminal window ).

String Literal:

A group of characters enclosed within double quotes can be considered to be String literal.

Null Literal:

The null represents nothing.

Class Literal:

A class literal is an expression consisting of the name of a class, interface, or primitive type followed by a dot('.')

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