Test two objects for inequality.
true
if !(this == that), false otherwise.
Equivalent to x.hashCode
except for boxed numeric types and null
. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null
returns a hashcode where null.hashCode
throws a NullPointerException
.
a hash value consistent with ==
The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
Cast the receiver object to be of type T0
.
Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String]
will throw a ClassCastException
at runtime, while the expression List(1).asInstanceOf[List[String]]
will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.
the receiver object.
ClassCastException
if the receiver object is not an instance of the erasure of type T0
.
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
a copy of the receiver object.
The development Scala version, if this is not a final release. The precise contents are not guaranteed, but it aims to provide a unique repository identifier (currently the svn revision) in the fourth dotted segment if the running version was built from source.
Some(version) if this is a non-final version, None if this is a final release or the version cannot be read.
This is the default text encoding, overridden (unreliably) with JAVA_OPTS="-Dfile.encoding=Foo"
Tests whether the argument (that
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on non-null instances of AnyRef
, and has three additional properties:
x
and y
of type AnyRef
, multiple invocations of x.eq(y)
consistently returns true
or consistently returns false
.For any non-null instance x
of type AnyRef
, x.eq(null)
and null.eq(x)
returns false
.
null.eq(null)
returns true
. When overriding the equals
or hashCode
methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2
), they should be equal to each other (o1 == o2
) and they should hash to the same value (o1.hashCode == o2.hashCode
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types. Default implementation delegates to eq
.
See also equals
in scala.Any.
true
if the receiver object is equivalent to the argument; false
otherwise.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize
method is invoked, as well as the interaction between finalize
and non-local returns and exceptions, are all platform dependent.
Returns the runtime class representation of the object.
a class object corresponding to the runtime type of the receiver.
The hashCode method for reference types. See hashCode in scala.Any.
the hash code value for this object.
Test whether the dynamic type of the receiver object is T0
.
Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String]
will return false
, while the expression List(1).isInstanceOf[List[String]]
will return true
. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Compares the given specification version to the major version of the platform.
a specification major version number
Compares the given specification version to the specification version of the platform.
a specification version number (legacy forms acceptable)
true
if the specification version of the current runtime is equal to or higher than the version denoted by the given string.
// In this example, the runtime's Java specification is assumed to be at version 8. isJavaAtLeast("1.8") // true isJavaAtLeast("8") // true isJavaAtLeast("9") // false isJavaAtLeast("9.1") // false isJavaAtLeast("1.9") // throws
NumberFormatException
if the given string is not a version string
Returns true
iff the underlying operating system is a Linux distribution.
Returns true
iff the underlying operating system is a version of Apple Mac OSX.
Returns true
iff the underlying operating system is a version of Microsoft Windows.
The default end of line character.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
The name of the properties file
The numeric portion of the runtime Scala version, if this is a final release. If for instance the versionString says "version 2.9.0.final", this would return Some("2.9.0").
Some(version) if this is a final release build, None if it is an RC, Beta, etc. or was built from source, or if the version cannot be read.
The loaded properties
This is the encoding to use reading in source files, overridden with -encoding. Note that it uses "prop" i.e. looks in the scala jar, not the system properties.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
Either the development or release version if known, otherwise the empty string.
The version number of the jar this was loaded from plus "version " prefix, or "version (unknown)" if it cannot be determined.
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.13.0/scala/util/Properties$.html
Loads
library.properties
from the jar.