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o

scala.io

StdIn

object StdIn extends StdIn

Source
StdIn.scala
Linear Supertypes
StdIn, AnyRef, Any
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Value Members

  1. final def !=(arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Equivalent to x.hashCode except for boxed numeric types and null.

    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.

    returns

    a hash value consistent with ==

    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

    The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

    The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

    Cast the receiver object to be of type T0.

    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.

    returns

    the receiver object.

    Definition Classes
    Any
    Exceptions thrown

    ClassCastException if the receiver object is not an instance of the erasure of type T0.

  5. def clone(): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
    Note

    not specified by SLS as a member of AnyRef

  6. final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (that) is a reference to the receiver object (this).

    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:

    • It is consistent: for any non-null instances 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).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to eq.

    See also equals in scala.Any.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    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.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
    Note

    not specified by SLS as a member of AnyRef

  9. final def getClass(): Class[_ <: AnyRef]

    Returns the runtime class representation of the object.

    Returns the runtime class representation of the object.

    returns

    a class object corresponding to the runtime type of the receiver.

    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

    the hash code value for this object.

    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is T0.

    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.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  13. final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Annotations
    @native()
    Note

    not specified by SLS as a member of AnyRef

  14. final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Annotations
    @native()
    Note

    not specified by SLS as a member of AnyRef

  15. def readBoolean(): Boolean

    Reads a boolean value from an entire line of the default input.

    Reads a boolean value from an entire line of the default input. Has a fairly liberal interpretation of the input.

    returns

    the boolean value read, or false if it couldn't be converted to a boolean

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

  16. def readByte(): Byte

    Reads a byte value from an entire line of the default input.

    Reads a byte value from an entire line of the default input.

    returns

    the Byte that was read

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to a Byte

  17. def readChar(): Char

    Reads a char value from an entire line of the default input.

    Reads a char value from an entire line of the default input.

    returns

    the Char that was read

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.StringIndexOutOfBoundsException if the line read from default input was empty

  18. def readDouble(): Double

    Reads a double value from an entire line of the default input.

    Reads a double value from an entire line of the default input.

    returns

    the Double that was read.

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to a Float

  19. def readFloat(): Float

    Reads a float value from an entire line of the default input.

    Reads a float value from an entire line of the default input.

    returns

    the Float that was read.

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to a Float

  20. def readInt(): Int

    Reads an int value from an entire line of the default input.

    Reads an int value from an entire line of the default input.

    returns

    the Int that was read

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to an Int

  21. def readLine(text: String, args: Any*): String

    Print and flush formatted text to the default output, and read a full line from the default input.

    Print and flush formatted text to the default output, and read a full line from the default input. Returns null if the end of the input stream has been reached.

    text

    the format of the text to print out, as in printf.

    args

    the parameters used to instantiate the format, as in printf.

    returns

    the string read from the default input

    Definition Classes
    StdIn
  22. def readLine(): String

    Read a full line from the default input.

    Read a full line from the default input. Returns null if the end of the input stream has been reached.

    returns

    the string read from the terminal or null if the end of stream was reached.

    Definition Classes
    StdIn
  23. def readLong(): Long

    Reads an long value from an entire line of the default input.

    Reads an long value from an entire line of the default input.

    returns

    the Long that was read

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to a Long

  24. def readShort(): Short

    Reads a short value from an entire line of the default input.

    Reads a short value from an entire line of the default input.

    returns

    the short that was read

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

    java.lang.NumberFormatException if the value couldn't be converted to a Short

  25. def readf(format: String): List[Any]

    Reads in some structured input (from the default input), specified by a format specifier.

    Reads in some structured input (from the default input), specified by a format specifier. See class java.text.MessageFormat for details of the format specification.

    format

    the format of the input.

    returns

    a list of all extracted values.

    Definition Classes
    StdIn
    Exceptions thrown

    java.io.EOFException if the end of the input stream has been reached.

  26. def readf1(format: String): Any

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first value extracted, according to the format specification.

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first value extracted, according to the format specification.

    format

    format string, as accepted by readf.

    returns

    The first value that was extracted from the input

    Definition Classes
    StdIn
  27. def readf2(format: String): (Any, Any)

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first two values extracted, according to the format specification.

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first two values extracted, according to the format specification.

    format

    format string, as accepted by readf.

    returns

    A scala.Tuple2 containing the first two values extracted

    Definition Classes
    StdIn
  28. def readf3(format: String): (Any, Any, Any)

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first three values extracted, according to the format specification.

    Reads in some structured input (from the default input), specified by a format specifier, returning only the first three values extracted, according to the format specification.

    format

    format string, as accepted by readf.

    returns

    A scala.Tuple3 containing the first three values extracted

    Definition Classes
    StdIn
  29. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  30. def toString(): String

    Creates a String representation of this object.

    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.

    returns

    a String representation of the object.

    Definition Classes
    AnyRef → Any
  31. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  32. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  33. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from StdIn

Inherited from AnyRef

Inherited from Any

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