JAVATM- The Beginnings
A literal is a symbol we use to represent a constant value.
When we place the literal 5 in a Java source file
X = 5;
the Java compiler substitutes the symbol 5 with the whole number value 5.
Java assumes all integer literal are of type int (32 bits).
Append the letter L to an integer literal to indicate it should be treated as a long integer (64 bits):
The literal for the number 15 can be displayed in the following form.
binary form: 0b1111 <- prefixed by 0b
octal form: 017 <- prefixed by 0
hexadecimal form: 0xF <- prefixed by 0x
Java assumes all floating point literals are of type double (64 bits).
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