Which of the following is a correct declaration of a variable and a call to a constructor of an ArrayList of double precision (double) numbers? Assume that the default constructor is defined. ArrayList numbers = new ArrayList; O ArrayList numbers = new ArrayList(); %3D ArrayList numbers new ArrayList(); ArrayList numbers = new ArrayList();

Microsoft Visual C#
7th Edition
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Joyce, Farrell.
Chapter8: Advanced Method Concepts
Section: Chapter Questions
Problem 2E
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Which of the following is a correct declaration of a variable and a call to a
constructor of an ArrayList of double precision (double) numbers? Assume that the
default constructor is defined.
ArrayList<Double> numbers = new ArrayList<Double>;
O ArrayList<double> numbers = new ArrayList<double>();
%3D
ArrayList<Double> numbers
= new ArrayList<Double>();
ArrayList<Double> numbers = new ArrayList<Float>();
What is the UNIX command to copy the directory classes and its entire content that
is located in your home directory into classes_bkp, also in your home directory?
cp -r ~/classes ~/classes_bkp
copydir -/classes ~/classes_bkp
cp ~/classes ~/classes_bkp
cp -r HOME/classes HOME/classes_bkp
Transcribed Image Text:Which of the following is a correct declaration of a variable and a call to a constructor of an ArrayList of double precision (double) numbers? Assume that the default constructor is defined. ArrayList<Double> numbers = new ArrayList<Double>; O ArrayList<double> numbers = new ArrayList<double>(); %3D ArrayList<Double> numbers = new ArrayList<Double>(); ArrayList<Double> numbers = new ArrayList<Float>(); What is the UNIX command to copy the directory classes and its entire content that is located in your home directory into classes_bkp, also in your home directory? cp -r ~/classes ~/classes_bkp copydir -/classes ~/classes_bkp cp ~/classes ~/classes_bkp cp -r HOME/classes HOME/classes_bkp
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