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Create a class that will evaluate an infix expression. It should have the follow

ID: 3565400 • Letter: C

Question

Create a class that will evaluate an infix expression. It should have the following methods: constructor evaluate Takes a String (infix expression), returns a double The infix expression may or may not contain spaces Assume positive numbers (no unary ? operator) Operands are doubles (may contain a decimal) The four arithmetic expressions plus exponentiation (A) allowed as operators postfix returns a string, the postfix expression (or an empty string if none) debugString returns the infix expression with an error message, or the infix and the postfix with an error method This class should throw a custom exception if the infix cannot be evaluated. Catch this exception in your driver. Requirements: Use a stack to convert the string from infix to postfix, putting the postfix expression into a queue Use this queue and another stack to evaluate the postfix expression Create a driver that allows the user to enter infix expressions, and evaluate them, or show the debug string if an exception is thrown., and repeat if wished. Use dialog boxes.

Explanation / Answer

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