Package io

Class Keyboard

java.lang.Object
io.Keyboard
public class Keyboard
extends java.lang.Object
Facilitates keyboard input by abstracting details about input parsing, conversions, and exception handling.

  • Field Summary

    Fields
    Modifier and Type Field Description
    private static java.lang.String currentToken  
    private static java.io.BufferedReader in  
    private static java.util.StringTokenizer reader  

  • Constructor Summary

    Constructors
    Constructor Description
    Keyboard()  

  • Method Summary

    Modifier and Type Method Description
    static boolean endOfLine()
    Returns true if there are no more tokens to read on the current input line.
    private static void error​(java.lang.String errorString)
    Prints out a specified error message.
    private static java.lang.String getNextInputToken​(boolean skip)
    Gets the next token from the input, which may come from the current input line or a subsequent one.
    private static java.lang.String getNextToken()
    Gets the next input token, assuming it may be on subsequent input lines.
    private static java.lang.String getNextToken​(boolean skip)
    Gets the next input token, which may already have been read.
    static int readInt()
    Returns an integer read from standard input.
    static java.lang.String readString()
    Returns a string read from standard input.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • currentToken

      private static java.lang.String currentToken

    • reader

      private static java.util.StringTokenizer reader

    • in

      private static final java.io.BufferedReader in

  • Constructor Details

    • Keyboard

      public Keyboard()

  • Method Details

    • error

      private static void error​(java.lang.String errorString)
      Prints out a specified error message.
      Parameters:
      errorString - Error text to be printed.

    • getNextToken

      private static java.lang.String getNextToken()
      Gets the next input token, assuming it may be on subsequent input lines.

    • getNextToken

      private static java.lang.String getNextToken​(boolean skip)
      Gets the next input token, which may already have been read.
      Parameters:
      skip - ???
      Returns:
      Next input token.

    • getNextInputToken

      private static java.lang.String getNextInputToken​(boolean skip)
      Gets the next token from the input, which may come from the current input line or a subsequent one.
      Parameters:
      skip - ???
      Returns:
      Input token.

    • endOfLine

      public static boolean endOfLine()
      Returns true if there are no more tokens to read on the current input line.

    • readString

      public static java.lang.String readString()
      Returns a string read from standard input.
      Returns:
      The string entered by the user.

    • readInt

      public static int readInt()
      Returns an integer read from standard input.
      Returns:
      The integer entered by the user.