In Java, can I define an integer constant in binary format?

Question

Similar to how you can define an integer constant in hexadecimal or octal, can I do it in binary?

I admit this is a really easy (and stupid) question. My google sea

Answer 1

In Java 7:

int i = 0b10101010;

There are no binary literals in older versions of Java (see other answers for alternatives).

Answer 2

Search for "Java literals syntax" on Google and you come up with some entries.

There is an octal syntax (prefix your number with 0), decimal syntax and hexadecimal syntax with a "0x" prefix. But no syntax for binary notation.

Some examples:

int i = 0xcafe ; // hexadecimal case
int j = 045 ;    // octal case
int l = 42 ;     // decimal case