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Refer to algorithm convertToPostfix, as in Segment 5.16 of the textbook and as discussed in class presentation. Define a class MyExpressionConverter and use this algorithm to create the following static method for this class:

(a) ConvertToPostfix (String infixstring) - This method takes 1 String argument that is an infix expression - Return a postfix version of this infixString
(b) Test this ConvertToPostfix method, by converting the following infix expression strings to postfix (i) a∗b/(c−d) (ii) (a−b∗c)/(d∗e ∗ f+g) (iii) a/b ∗(c+(d−e))

User Medena
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Final answer:

The student's question pertains to creating a class named MyExpressionConverter in a programming context, with a method to convert infix expressions to postfix expressions. The method ConvertToPostfix transforms given infix expressions into their postfix form, using a stack to manage operator precedence and output order.

Step-by-step explanation:

The question is regarding the implementation of an algorithm to convert an infix expression to a postfix expression in a programming context, which is typically covered in computer science curriculum.

Within this scope, a class MyExpressionConverter is to be defined with a static method named ConvertToPostfix. This method takes as input a string representing an infix expression and returns a string representing the corresponding postfix expression. Here is a simplified example of what such a method might look like:

  • Check the precedence of operators.
  • Use a stack to keep track of operators encountered.
  • Output operands (numbers/variables) directly to the result string.
  • When an operator is encountered, push it on the stack if the stack is empty or the current operator has higher precedence than the top of the stack.
  • If the current operator has lower or equal precedence than the operator at the top of the stack, pop operators from the stack to the result string until this condition is false, then push the current operator.
  • When the input expression has been fully traversed, pop any remaining operators from the stack to the result string.

Converting the given infix expressions to postfix using the ConvertToPostfix method would result in:

  1. a b * c d - / for the infix expression 'a*b/(c-d)'
  2. a b c * - d e * f * g + / for the infix expression '(a-b*c)/(d*e*f+g)'
  3. a b / c d e - + * for the infix expression 'a/b*(c+(d-e))'

User Moz
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