jmathlib.toolbox.general
Class kbhit

java.lang.Object
  extended by jmathlib.core.interpreter.RootObject
      extended by jmathlib.core.functions.Function
          extended by jmathlib.core.functions.ExternalFunction
              extended by jmathlib.toolbox.general.kbhit
All Implemented Interfaces:
java.awt.event.KeyListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, ErrorCodes, TokenConstants

public class kbhit
extends ExternalFunction
implements java.awt.event.KeyListener

An external function for emitting a beep sound

See Also:
Serialized Form

Field Summary
 
Fields inherited from class jmathlib.core.functions.ExternalFunction
IMAG, REAL
 
Fields inherited from class jmathlib.core.functions.Function
lastModified, name, pathAndFileName
 
Fields inherited from interface jmathlib.core.constants.ErrorCodes
ERR_BRACKET_OPEN, ERR_BRACKET_ORDER, ERR_FUNCTION_NOT_FOUND, ERR_FUNCTION_NOT_IMPLEMENTED, ERR_INSUFFICIENT_PARAMETERS, ERR_INVALID_PARAMETER, ERR_LVALUE_REQUIRED, ERR_MATRIX_SINGULAR, ERR_NOT_SQUARE_MATRIX, ERR_OPNOTSUPPORTED, ERR_TOO_MANY_PARAMETERS, ERR_USER_ERROR, ERR_VARIABLE_NOTDEFINED, OK, OK_FUNCTION_PROCESS
 
Fields inherited from interface jmathlib.core.constants.TokenConstants
ADDSUB_PRIORITY, AND_PRIORITY, ANDAND_PRIORITY, ASSIGN_PRIORITY, BRACKET_PRIORITY, COMPARE_PRIORITY, CONCAT, MATRIX, MULDIV_PRIORITY, OR_PRIORITY, OROR_PRIORITY, PARAMETER, POWER_PRIORITY, RELATION_PRIORITY, SINGLE, ttDelimiter, ttNotSet, ttOperand, ttOperator
 
Constructor Summary
kbhit()
           
 
Method Summary
 OperandToken evaluate(Token[] operands)
          waits until a key is hit on the keyboard
 void keyPressed(java.awt.event.KeyEvent event)
           
 void keyReleased(java.awt.event.KeyEvent event)
           
 void keyTyped(java.awt.event.KeyEvent event)
           
 
Methods inherited from class jmathlib.core.functions.ExternalFunction
getParamCount
 
Methods inherited from class jmathlib.core.functions.Function
debugLine, equals, getLastModified, getName, getNArgIn, getNArgOut, getNoOfLeftHandArguments, getPathAndFileName, setLastModified, setName, setNoOfLeftHandArguments, setPathAndFileName, throwMathLibException
 
Methods inherited from class jmathlib.core.interpreter.RootObject
clone, getContextList, getDebug, getFunctionManager, getGlobalVariables, getGraphicsManager, getInterpreter, getPluginsManager, getVariable, getVariables, getWorkingDirectory, setConstants, setDebug, setWorkingDirectory, toString, toString
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

kbhit

public kbhit()
Method Detail

evaluate

public OperandToken evaluate(Token[] operands)
waits until a key is hit on the keyboard

Specified by:
evaluate in class Function
Parameters:
operands - - an array of the functions paramaters
Returns:
the result as an OperandToken

keyPressed

public void keyPressed(java.awt.event.KeyEvent event)
Specified by:
keyPressed in interface java.awt.event.KeyListener

keyReleased

public void keyReleased(java.awt.event.KeyEvent event)
Specified by:
keyReleased in interface java.awt.event.KeyListener

keyTyped

public void keyTyped(java.awt.event.KeyEvent event)
Specified by:
keyTyped in interface java.awt.event.KeyListener