Reference no: EM13166895
Add a class MultiChoiceQuestion to the question hierarchy of Section 9.1 that allows multiple correct choices. The respondent should provide all correct choices, sepa- rated by spaces. Provide instructions in the question text.
Add a method addText to the Question superclass and provide a different implementa- tion of ChoiceQuestion that calls addText rather than storing an array list of choices.
Provide toString methods for the Question and ChoiceQuestion classes.
Implement a superclass Person. Make two classes, Student and Instructor, that inherit from Person. A person has a name and a year of birth. A student has a major, and an instructor has a salary. Write the class declarations, the constructors, and the methods toString for all classes. Supply a test program that tests these classes and methods.
Make a class Employee with a name and salary. Make a class Manager inherit from Employee. Add an instance variable, named department, of type String. Supply a method toString that prints the manager's name, department, and salary. Make a class Execu tive inherit from Manager. Supply appropriate toString methods for all classes. Supply a test program that tests these classes and methods.
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Question hierarchy of section
: 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..
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In competitive tournament
: In competitive tournaments, it is common for all the players or teams to play in a series of matches in order to determine a single winner of the entire tournament. However, a number of different tournament formats exist. Here, we will concern our..
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What is the density of the metal
: A piece of metal with a mass of 146 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 35 mL. What is the density of the metal?
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What is the molality of x in the solution
: A 0.300-M solution of X (Mm = 171 g/mol) has a density of 1.096 g/ml. What is the molality of X in the solution?
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Question superclass and provide a different implementa
: Add a method addText to the Question superclass and provide a different implementa- tion of ChoiceQuestion that calls addText rather than storing an array list of choices.
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How many kilograms of calcium are there in a 173-pound man
: If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 173-pound man?
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Determine which half-cell will undergo oxidation
: Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
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What is the pressure in the can
: An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
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Calculate the mass of agcl and h2s formed
: calculate the mass of agcl and h2s formed when 85.6 g of ag2s reacts with excess hcl.
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