1. Description
2. Method Summary
3. Method Details
   1. println(Object)
   2. println()
   3. print(Object)
   4. readln(String)
   5. readln()

• Method Summary

  All MethodsStatic MethodsConcrete Methods

  Modifier and Type

  Method

  Description

  static void

  print(Object obj)

  Writes a string representation of the specified object to the system console and then flushes that console.

  static void

  println()

  Terminates the current line on the system console and then flushes that console.

  static void

  println(Object obj)

  Writes a string representation of the specified object to the system console, terminates the line and then flushes that console.

  static String

  readln()

  Reads a single line of text from the system console.

  static String

  readln(String prompt)

  Writes a prompt as if by calling print, then reads a single line of text from the system console.

  Methods declared in class java.lang.Object

  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Method Details

  • println

    public static void println(Object obj)

    Writes a string representation of the specified object to the system console, terminates the line and then flushes that console.

    The effect is as if println(obj)PREVIEW had been called on System.console().

    Parameters:

    obj - the object to print, may be null

    Throws:

    IOError - if System.console() returns null, or if an I/O error occurs

  • println

    public static void println()

    Terminates the current line on the system console and then flushes that console.

    The effect is as if println()PREVIEW had been called on System.console().

    Throws:

    IOError - if System.console() returns null, or if an I/O error occurs

    Since:

    24

  • print

    public static void print(Object obj)

    Writes a string representation of the specified object to the system console and then flushes that console.

    The effect is as if print(obj)PREVIEW had been called on System.console().

    Parameters:

    obj - the object to print, may be null

    Throws:

    IOError - if System.console() returns null, or if an I/O error occurs

  • readln

    public static String readln(String prompt)

    Writes a prompt as if by calling print, then reads a single line of text from the system console.

    The effect is as if readln(prompt)PREVIEW had been called on System.console().

    Parameters:

    prompt - the prompt string, may be null

    Returns:

    a string containing the line read from the system console, not including any line-termination characters. Returns null if an end of stream has been reached without having read any characters.

    Throws:

    IOError - if System.console() returns null, or if an I/O error occurs

  • readln

    public static String readln()

    Reads a single line of text from the system console.

    The effect is as if readln()PREVIEW had been called on System.console().

    Returns:

    a string containing the line read from the system console, not including any line-termination characters. Returns null if an end of stream has been reached without having read any characters.

    Throws:

    IOError - if System.console() returns null, or if an I/O error occurs

    Since:

    24

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