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1. Write a program that inputs an array of numbers from the command line, and averages them. The program should work for any decimal numbers that can be stored with the datatype double , as shown below. Here is some sample output: > java -classpath .:/run_dir/junit-4.12.jar:target/dependency/* Main usage: java Main 5 4 2 8 To average the numbers 5, 4, 2 and 8 > java Main 1.5 2 2.5 43.222 3 Here is your array of numbers: 1.5, 2.0, 2.5, 43.222, 3.0 and their average is: 10.4444 > java Main 1 2 3 4 Here is your array of numbers: 1.0, 2.0, 3.0, 4.0 and their average is: 2.5

1. Write a program that inputs an array of numbers from the command line, and averages them. The program should work for any decimal numbers that can be stored with the datatype double , as shown below. Here is some sample output: > java -classpath .:/run_dir/junit-4.12.jar:target/dependency/* Main usage: java Main 5 4 2 8 To average the numbers 5, 4, 2 and 8 > java Main 1.5 2 2.5 43.222 3 Here is your array of numbers: 1.5, 2.0, 2.5, 43.222, 3.0 and their average is: 10.4444 > java Main 1 2 3 4 Here is your array of numbers: 1.0, 2.0, 3.0, 4.0 and their average is: 2.5

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Write a Java program

The program has no console input, so it doesn't use Scanner.

Please include at least two methods (functions) including main in your program.

run the program without command line arguments, it provides a "usage" message to show how the program should be run.

1. Write a program that inputs an array of numbers from the command line, and averages them. The program should work for any decimal numbers that can be stored with the datatype double , as shown below. Here is some sample output: > java -classpath .:/run_dir/junit-4.12.jar:target/dependency/* Main usage: java Main 5 4 2 8 To average the numbers 5, 4, 2 and 8 > java Main 1.5 2 2.5 43.222 3 Here is your array of numbers: 1.5, 2.0, 2.5, 43.222, 3.0 and their average is: 10.4444 > java Main 1 2 3 4 Here is your array of numbers: 1.0, 2.0, 3.0, 4.0 and their average is: 2.5
Transcribed Image Text:1. Write a program that inputs an array of numbers from the command line, and averages them. The program should work for any decimal numbers that can be stored with the datatype double , as shown below. Here is some sample output: > java -classpath .:/run_dir/junit-4.12.jar:target/dependency/* Main usage: java Main 5 4 2 8 To average the numbers 5, 4, 2 and 8 > java Main 1.5 2 2.5 43.222 3 Here is your array of numbers: 1.5, 2.0, 2.5, 43.222, 3.0 and their average is: 10.4444 > java Main 1 2 3 4 Here is your array of numbers: 1.0, 2.0, 3.0, 4.0 and their average is: 2.5
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