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Reference to the MainUI instance for handling input operations.
Reference to the MainUI instance for handling input and result operations.
(package private)
Constructs an InfixToPostfix object and performs infix to postfix conversion.
(package private)
Constructs the KeyboardEvents object with references to the UI instances.
(package private)
Constructs the Logic object with references to the UI instances.
(package private)
Constructs a PostfixEvaluation object and evaluates the given postfix expression.