Are there binary literals in Java?

by

Starting with Java 7 you can represent integer numbers directly as binary numbers, using the form 0b (or 0B) followed by one or more binary digits (0 or 1). For example, 0b101010 is the integer 42. Like octal and hex numbers, binary literals may represent negative numbers.

If you do not have Java 7 use this:

int val = Integer.parseInt("001101", 2);

There are other ways to enter integer numbers:

  1. As decimal numbers such as 1995, 51966. Negative decimal numbers such as -42 are actually expressions consisting of the integer literal with the unary negation operation.

  2. As octal numbers, using a leading 0 (zero) digit and one or more additional octal digits (digits between 0 and 7), such as 077. Octal numbers may evaluate to negative numbers; for example 037777777770 is actually the decimal value -8.

  3. As hexadecimal numbers, using the form 0x (or 0X) followed by one or more hexadecimal digits (digits from 0 to 9, a to f or A to F). For example, 0xCAFEBABEL is the long integer 3405691582. Like octal numbers, hexadecimal literals may represent negative numbers.

More details can be found in this Wikibook.

More Related Contents:

  1. Java: Syntax and meaning behind “[B@1ef9157”? Binary/Address?
  2. In Java, can I define an integer constant in binary format?
  3. Convert binary string to byte array
  4. The main thing is: how that binary for example 11110000 is divided into two parts such as s1=1111 and s2=0000. I have to do this in Java
  5. how to get the first two bytes from a string in java?
  6. What is the Java ?: operator called and what does it do?
  7. Is there a difference between x++ and ++x in java?
  8. Difference between >>> and >>
  9. How to get 0-padded binary representation of an integer in java?
  10. What’s the syntax to import a class in a default package in Java? [duplicate]
  11. Converting an int to a binary string representation in Java?
  12. Converting Decimal to Binary Java
  13. How to convert a byte to its binary string representation
  14. Java “?” Operator for checking null – What is it? (Not Ternary!)
  15. Setting Short Value Java
  16. Curly braces in “new” expression? (e.g. “new MyClass() { … }”)
  17. Why int j = 012 giving output 10?
  18. Java modifiers syntax and format
  19. Null check in an enhanced for loop
  20. Modifier Keyword order in Java
  21. Java Lombok: Omitting one field in @AllArgsConstructor?
  22. Compare two Byte Arrays? (Java)
  23. Why is declaration of the variable required inside a for-each loop in java
  24. What’s the best way to get a Class object for an array type?
  25. What’s the difference between this and Activity.this
  26. What does a tilde in angle brackets mean when creating a Java generic class?
  27. Static method invocation
  28. When would you put a semicolon after a method closing brace?
  29. Is there a goto statement in Java?
  30. My java code has an obvious error. Why does it compile and run?

Leave a Comment