Question

P3 - An Array of objects (120 points) Write a main program and declare an array of 5 RectangularCube objects [20pts). a. Use a loop to initialize an array of RectangularCube. In the body of the loop use the rand () function to generate random integers between 1 and 10 to assign to length, width and height data fields of each RectangularCube object (40pts) b. Write the function with header void printCube (RectangularCube rs) that receives an object of the type RectangularCube and displays the length, width, height, volume and the surface area of the cube like: L = 2, W = 1, H = 1, V = 2, A = 8 [30pts). c. Use a loop to display individual elements of the array in part (a) by calling the function printCube in part (b) [20pts). d. Code submission and sample output [1.22ts).

Answer 1

#include <iostream>
using namespace std;

class RectangularCube{//creaitng class
private:
int length,width,height;
public:
RectangularCube(){}//constructor
RectangularCube(int length, int width, int height){//parameterized constructor
this->length = length;
this->width = width;
this->height = height;
}
//getters to get object length and width and height and volume and surface area
int getLength(){
return this->length;
}
int getWidth(){
return this->width;
}
int getHeight(){
return this->height;
}
int getSurfacearea(){
return 2*((this->width*this->length) + (this->length*this->height) + (this->height*this->width));
}
int getVolume(){
return (this->length*this->width*this->height);
}
};

//printcube accepts rectangularcube object and print desired parameter
void printCube(RectangularCube rc){

cout << "\nL = " << rc.getLength()<< ",W = " << rc.getWidth()<< ",H = " << rc.getHeight()<< ",V = "<<rc.getVolume()<< ",A = " << rc.getSurfacearea()<<endl;
}

int main() {
int length, width, height;
  
RectangularCube rc[5];//create 5 objects of rectangularcube
// this is to initialize the rand() with seed 0
srand(time(0));
  
for(int i=0; i<5; i++){
// random numbers are generated between 1 and 10
length = rand()%10 + 1;
width = rand()%10 + 1;
height = rand()%10 + 1;
  
rc[i] = RectangularCube(length, width, height);
}
  
// looping through created 5 objects
for(int i=0; i<5; i++){
printCube(rc[i]);
cout << "\n-------------------------------------------\n";
}

}

/cygdrive/d/practice gkongana@GKONGANA-IN /cygdrive/d/practice $ g++ practice.cpp gkongana@GKONGANA-IN /cygdrive/d/practice $ ./a.exe L = 9,W = 4, H = 10,1 = 360, A = 332, - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - L = 2,W = 7,H = 8,7 = 112, A = 172, L = 10,W = 4, H = 4,V = 160, A = 192 L = 10,W = 5,H = 7,1 = 350, A = 310 ------------------------------------------- L = 7,W = 1, H = 4,1 = 28, A = 78 gkongana@GKONGANA-IN /cygdrive/d/practice

File Edit Selection Find View Goto Tools Project Preferences Help practice.cpp #include <iostream> using namespace std; 2 class RectangularCube{//creaitng class private: int length, width, height; public: RectangularCube(){}//constructor RectangularCube(int length, int width, int height){ //parameterized constructor this->length = length; this->width = width; this->height = height; //getters to get object length and width and height and volume and surface area int getLength(){ return this->length; int getWidth() { return this->width; int getHeight() { return this->height; int getsurfacearea(){ return 2*((this->width*this->length) + (this->length*this->height) + (this->height*this->width)); int getVolume(){ return (this->length*this->width*this->height); 30 };

Upractice practice.cpp - Sublime Text (UNREGISTERED) File Edit Selection Find View Goto Tools Project Preferences Help practice.cpp 31 32 //printcube accepts rectangularcube object and print desired parameter void printCube (RectangularCube rc){ 34 cout << "\nL = " << rc.getLength()<< ",W = " << rc.getWidth()«< ", H = " << rc.getHeight()«< ", V = "<<rc.getVolume() << ", A = " << rc.getsurfacearea()<<endl; 38 int main() { int length, width, height; RectangularCube ro[5]://create 5 objects of rectangularcube // this is to initialize the rand with seed o srand(time()); for(int i=0; i<5; i++) { // random numbers are generated between 1 and 10 length = rand(%10 + 1; width = rand()%10 + 1; height = rand()%10 + 1; rc[i] = RectangularCube (length, width, height); // looping through created 5 objects for(int i=0; i<5; i++){ printCube (rc[i]); cout << "\n----- ---------------\n"; Line 48. Column 31 Spaces: 4