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This program must use stacks in order to evaluate integer expressions. Your program need only implement the following binary operators: <br/> <br/>+ … addition <br/>- … subtraction <br/>* … multiplication <br/>/ … integer division <br/>< … minimum (e.g. 3 < 2 yields 2) <br/>> … maximum (e.g. 3 > 2 yields 3) <br/> <br/>To keep the assignment somewhat more manageable you may assume that all input integers are unsigned single decimal digits (0-9). However, your evaluation may result in larger and/or negative integers. <br/>The evaluation of expressions must recognize the standard precedence: <br/>< and > have the highest precedence <br/>* and / have the middle precedence <br/>+ and - have lowest precedence <br/>Expressions must also permit the usual use of parentheses (...) to override precedence. <br/>Below are several examples of proper expressions: <br/> <br/>1+2*3>4 <br/>(24-7)/2+6<3*(31-299) <br/>2*3*4*5*6 <br/>10>9*8+7+2 <br/> <br/>Your program must read input expressions from a text file and allow the user to select which text file to process using a JFileChooser. You may assume that each line of the text file is a separate integer expression and that there are no blanks or other invalid characters in the file. <br/>For each input expression your program should output (using System.out.println) the input line followed by "==" then followed by the numeric value of the resulting expressions evaluation. <br/>You must implement a generic Stack class like the one given in lecture. <br/>The standard algorithm for evaluating expressions of this style is to use two stacks - one <br/>stack for operators (the operator stack) and the other for operands/subexpression values <br/>(the operand stack). An expression is processed left to right as follows: <br/>• Each operand encountered is pushed upon the operand stack. <br/>• Each left paren encountered is pushed upon the operator stack. <br/>• Each right paren causes operators to be popped from the operator stack and the associated subexpressions evaluated until a left paren is found in the operator stack. The left paren is then popped. <br/>• Each operator has its precedence compared to the precedence of the operator atop the operator stack. Operators are popped off the operator stack and their corresponding subexpressions evaluated until the top of the operator stack is <br/>either a left paren or has a precedence less than the new operator. After evaluating subexpressions, the new operator is pushed onto the operator stack. <br/>• At the end of the expression all operators on the operator stack must be popped and their corresponding subexpressions evaluated. The value of the expression should be the single remaining value atop the operand stack. When the prior explanations refer to “popping an operator and evaluating the <br/>corresponding subexpression” this means that the operand stack should be popped <br/>twice, and the two popped operands are evaluated using the popped operator with the <br/>resulting value pushed on the operand stack. For example, if the top of the operand <br/>stack is a 7 and the second operand in the operand stack is a 3 and the operator is a “-“, <br/>then all three of these are popped and the result of the subexpression 3-7 (i.e., the value -4) is pushed on the operand stack.
Trust and Deception
Write a Turing machine that decreases a positive binary number by one? By writing turing machine an instruction set in the form of (w,x,y,z,a) where w is current state,
Discuss the benefits and provide examples of working with shell scripts.
Part 1: Write a formula as if it were in Cell E2 that will calculate gross pay. Write the formula so that it may be copied to the other employees without modification.
How many different seven-digit phone numbers (ignoring area code) can be formed? Can city of 2 million people be served by single area code? Describe.
What Windows Server 2008 capability enables them to do the mass installation quickly and efficiently? What general steps are involved in setting up this capability? Can the capability also be used to install Windows 7 on the 24 new client workstat..
Write a Select statement that returns one column from the Vendors table named Full Name.
Consider the sub-image. Determine gradient magnitude and gradient direction at center entry using following operators.
Your program will generate a 5-digit lottery number, and then it will prompt the user to enter a guess in the form of a 5-digit number. Your program should then determine how many numbers.
The distance between nodes u and v in graph is the length of the shortest path from u to v. Given a d-dimensional hypercube and a designated source node s, how many nodes are distance i from s, where 0
Write a program in python shell. Convert inches into yards, feet, and inches. This time, use a variable to store the number of inches. You may use more than one variable.
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