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Objectives
- To gain understanding of how an implementation of an ADT is used by an application program. - To learn how expressions can be evaluated at run-time. - To become familiar with how infix expressions can be converted to postfix expressions.
Task
Write a Java program (a collection of Java classes) including a class named ExpressionCalculator that contains a static main method. This main method will prompt the user to enter a constant expression (i.e., a mathematical expression without variables) at the keyboard. The expression must be in infix notation and must use spaces to separate the tokens (operands and operators) of the expression. (This restriction is imposed to simplify the parsing of the input.) The only exception to the space-separation rule is for the unary minus prefix operator, which will be assumed to be part of the specification of a negative constant operand. The program will then evaluate the expression and display the result on the console. It will then wait for another expression to be entered for evaluation, terminating on an empty input.
Write a Java program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The program should display the telephone number with any alphabetic characters
Strong authentication can also risk availability. A simple example is that forgetting your password denies you access to that which required a password. Sometimes the stakes are high, for example, if a network administrator is the only one who knows ..
Create an Employee class. Items to include as data members are employee number, name, date of hire, job description, department, and monthly salary.
1) Write a while loop that lets the user enter a number. The number should then be multiplied by 10, and stored in a variable called product. The loop should then iterate as long as product contains a value less than 100.
Interface that contains a generic type. Create two classes that implement this interface.
Students have names, addresses and courses. Implement the interface class RegisterStudent. RegisterStudent has one method, public boolean register, which returns the boolean value of true or false if the student is successfully registered for the ..
Write a Java application that stores the names of your family and friends in a one-dimensional array of Strings. The program should show all names in upper case and lower case, identify the first character of the name, and the lengths of the names.
Add a class AnyCorrectChoiceQuestion to the question hierarchy of Section 9.1 that allows multiple correct choices. The respondent should provide any one of the cor- rect choices. The answer string should contain all of the correct choices, separa..
Write a recursive method in this class called hasSameStructureAs(BinaryTree tree) that returns whether or not a tree has the same structure as another tree.
You are preparing for a marathon. In order to prepare, you need to train for 10 weeks, running an increasing number of miles per week, starting at running at least 2 miles your first week up to 26 miles by week 10.
Implement AVL trees that allows both iterative traversal and recursive traversal.
program below is suppose to take in a infix expression and translate it to a postfix expression, but I need a way for the user to be able to input the expression using a scanner and output the postfix.
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