Homework #3 Mcis 5103: Advanced Programming Concepts Instructor: Dr. Justin L. Rice Due Date: 3/1/2023

Homework #3 MCIS 5103: Advanced Programming Concepts Instructor: Dr
Justin L
Rice Due Date: 3/1/2023  Please refer to the code in the Appendix (pages 3 – 4) to answer the following questions
 1
Write the output for each section of print statements
(10 points) 2
Which Rectangle constructor does instance box1 call? Why? What concept does this demonstrate? Explain [in  four sentences or less]
(10 points) 3
Which Rectangle constructor does instance box2 call? Why? What concept does this demonstrate? Explain [in  four sentences or less]
(10 points) 4
Which Rectangle constructor does instance box3 call? Why? What concept does this demonstrate? Explain [in  four sentences or less]
(10 points) 5
What is the connection between box2 and box4? What happens (memory wise) when both box2 and box 4 are  declared null? Explain [in three sentences or less]
(20 points) 6
In the Main class, there are two variables named z
What is the difference between the two variables? What  concept does the output of the last three print statements demonstrate? Explain [in four sentences or less]
(20 points) 7
In the Rectangle class, explain the implementation of the Rectangle(int l, int w) constructor
Explain [in four  sentences or less]
(10 points) 8
In the Rectangle class, explain the implementation of the Rectangle(Rectangle other) constructor
Explain [in  four sentences or less]
(10 points) APPENDIX RectangleVolume
java public class RectangleVolume { public int length; public int width;  public int height;  public RectangleVolume(int l, int w, int h) {  length = l;  width = w;  height = h;  }  public RectangleVolume(int l, int w) {  this(l, w, 5);   }  public RectangleVolume(RectangleVolume other) {  this(other
length, other
width, other
height);   }  public int calcVolume(){  return length * width * height;   } } Main
java class Main {    static int z;  public static void main(String[] args)  {    RectangleVolume box3 = new RectangleVolume(3,4,5);  RectangleVolume box1 = new RectangleVolume(box3);  RectangleVolume box2 = new RectangleVolume(3,4);  RectangleVolume box4 = box2;    box1 = null;  System
out
println(‘n’);    System
out
println(‘box(l,w,h) = (‘ + box3
length + ‘,’ + box3
width + ‘,’ + box3
height + ‘)’);  System
out
println(‘box(l,w,h) = (‘ + box4
length + ‘,’ + box4
width + ‘,’ + box4
height + ‘)’);  System
out
println(‘box(l,w,h) = (‘ + box2
length + ‘,’ + box2
width + ‘,’ + box2
height + ‘)’);    box2 = null;    System
out
println(‘n’);    z = 34;  System
out
println(‘z = ‘ + z);  int z;  z = box3
calcVolume();  System
out
println(‘z = ‘ + z);  System
out
println(‘z = ‘ + Main
z);  } }