Java Technology

 Constants in java     Constants in java refers to fixed value in java that do not change during the execution of a program. Integer Constants:     An interger constant refers to a sequence of digits. There are three types of integers, Decimal integers, Octal integer and Hexadecimal integer. Decimal integer constant is a set of digits, o through 0, preceded by an optional min sign, Examples are:      123          -321         0          654321 Octal integer constant consists of any combination of digits from the set 0 through 7, with a leading 0. Examples are:     037            0          0453       05512 A sequence of digits preceded by 0x or 0X is considered as hexadecimal integers, they may also includes alphabets A through F or a through f . Examples are:     0x2...