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U

UnaryExpression - Class in slogo.instruction.arithmetic
 
UnaryExpression(GrammarElement) - Constructor for class slogo.instruction.arithmetic.UnaryExpression
 
UNDER_SCORE - Static variable in class slogo.language.CharConsts
 
undo() - Method in class slogo.Main
Undo previous action by replacing current turtle with previous turtle Items are placed onto the undoStack only when a command is evaluated (before the command is evaluated, to be precise).
undoStack - Variable in class slogo.Main
 

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