Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Passing Array as Argument
An array is a data structure that holds only fixed-size data and its contents are arranged in contiguous memory slots. The primary purpose of using an array is to store data items of the identical type together. An array can stockpile any one of the foll…
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java

Chapter 11: Programming Challenges for Additional Practice 1. TestScores Class Write a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a method that returns the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException. Demonstrate the class in a program. (2) Make a screenshot for your source code of the TestScores class in the PNG format. (3) Make a screenshot for your source code of the TestScoresDemo class in the PNG format. (3) Make a screenshot for your execution window in the PNG format. (4) Submit all 3 screenshots here. Part 1 Write a class named TestScores. The class constructor should accept an array of test scores as argument. The class should have a public method called averageScore() to return the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException. Part 2 Demonstrate the TestScores class in a program by creating a TestScoresDemo class in the same package. The program should ask the user to input the number of test scores to be counted, and then ask the user to input each individual test score. It should then make an array of those scores. It should then create a TestScores object, and pass the above array to the constructor of TestScores. It should then call the averageScore() method of the TestScores object to get the average score. It should then print the average of the scores. If the main() method catches an IllegalArgumentException exception, it should print "Test scores must have a value less than 100 and greater than 0." and terminate the program.
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Transcribed Image Text:Chapter 11: Programming Challenges for Additional Practice 1. TestScores Class Write a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a method that returns the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException. Demonstrate the class in a program. (2) Make a screenshot for your source code of the TestScores class in the PNG format. (3) Make a screenshot for your source code of the TestScoresDemo class in the PNG format. (3) Make a screenshot for your execution window in the PNG format. (4) Submit all 3 screenshots here. Part 1 Write a class named TestScores. The class constructor should accept an array of test scores as argument. The class should have a public method called averageScore() to return the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException. Part 2 Demonstrate the TestScores class in a program by creating a TestScoresDemo class in the same package. The program should ask the user to input the number of test scores to be counted, and then ask the user to input each individual test score. It should then make an array of those scores. It should then create a TestScores object, and pass the above array to the constructor of TestScores. It should then call the averageScore() method of the TestScores object to get the average score. It should then print the average of the scores. If the main() method catches an IllegalArgumentException exception, it should print "Test scores must have a value less than 100 and greater than 0." and terminate the program.
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