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  Tutorial: Java General Java Literals Tutorial

Integer literals can be decimal, octal, or hexadecimal.

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Java Literals

Integer literals can be decimal, octal, or hexadecimal.

Octal literals begin with zero and only digits 0 through 7 are allowed. For instance:

011

Hexadecimal literals begin with 0x or oX , the digits allowed are 0 through 9 and a through f (or A through F ). For instance:

0x0001;

All integer literals are of type int by default. To define them as long, we can place a suffix of L or l after the number.

For char literals, a single character is enclosed in single quotes. You can also use the prefix \u followed by four hexadecimal digits representing the 16-bit Unicode character:

'\u004E', 'A', 'a'
For float literals, we need to attach the suffix F or f . For instance:

float f = 23.6F;
double d = 23.6;


 

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