Home
Getting Started
Current Status
Documentation
- frostc
- Syntax
  - Keywords
  - Statements
    - Assignment
    - Method Calls
    - if
    - for
    - while
    - do
    - loop
    - break
    - continue
    - return
    - assert
    - unreachable
    - match
    - try
  - Expressions
  - Annotations
  - Comments
  - Documentation Comments
  - Error Handling
- Classes
  - Interfaces
  - Choices
  - Values
  - Immutability
  - Packages
    - Uses
  - Generics
  - Bare Code
- Methods
- Fields
- Types
- Variables and Constants
- Memory
  - Weak References
- Threads
API Documentation
- frostcollections Array Collection CollectionView CollectionWriter DefaultHashMap HashKey HashMap HashSet IdentityMap IdentitySet ImmutableArray Iterable Iterator List ListView ListWriter Map MapView MapWriter Stack core Bit Char16 Char32 Char8 Comparable Equatable Error Formattable Immutable Int Int16 Int32 Int64 Int8 Matcher Maybe MutableString Index MutableValue Object Range Real32 Real64 RegularExpression SteppedRange String Index Match System Process UInt UInt16 UInt32 UInt64 UInt8 Value Weak io ByteOrder Console File IndentedOutputStream InputStream LineNumberInputStream MemoryInputStream MemoryOutputStream OutputStream PushbackInputStream math Random XorShift128Plus threads Lock MessageQueue Notifier ScopedLock Thread time Timer unsafe Pointer UnsafeMessageQueue

Fields

A field is variable, define, or constant inside of a class body.

class Point {
    var x:Int
    var y:Int
}

In this example, the class Point has two fields, x and y. Each instance of Point has its own independent copies of these fields. As Frost does not feature global variables, the only class-level fields (called 'static' fields in many languages) in Frost are constants.

Fields which do not have default values must be initialized prior to invoking the superclass init method.