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Write class shape with width and height following a constructor that gives value to them.
Then define two sub-classes triangle and rectangle.
Those sub-classes can calculate the area of the shape area().
You need to follow the main() below. Please complete the program.

int main (){

    Rectangle rect;
    Triangle tri;
    rect.set_data (5,3);
    tri.set_data (2,5);
    cout << rect.area() << ";" << tri.area() << endl;
    return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited

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Hidden content!
#include * *** ****



using namespace std;



class shape  {
* *** ** ** *
* ***** * ** * * ** ** set_data(int x, int y)
*** ** ** * * * ****** **** **
* * * * ** * * * * * * * ** ******* ****** * ** * = x;
* *** * * ** *** * ** * * * * * * ** * * *** = y;
** ** ** * * ** * * * * * ** *****


* * * **** * * * ***
***** ****** * * **** **** * ** width;
* ****** * * ** *** * * ** ** height;

};



class Rectangle: public shape {
* * *** *** ** * **
**** ** * * * * ***** * * * *** * * * ** area() {
* ********* * * ** * **** ** ** * * *** * * (width * height);
* *** ** * * ***** * **** * * **

};



class Triangle: public shape {
* * * * ** ** * *
* * * * * * ** ** * * * * ** area() {
*** * ** *** * ** *** **** ***** * ** ***** ** (width * height / 2);
* * * ***** * *** *** * *

};



int main(void) {
* * **** ** *** **** * * rect;
** ** ** * ** * * * tri;


** * ** * ** *** ** * ** * 3);
** **** *** * * ** 5);


*** * * ** ******* * *** ** rect.area() * * ** ** **** * * * * ** ** tri.area() * ** * *** endl;


** ** ** ******* * ** * * 0;

}
answered by (126 points)
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#include ****** * * *



using * std;



class Shape

{
* **
** * * * * * *** * * * width, height;

public:
* *** ** * * * ** ** set_data (float a, float b)
** * *** * ** ** **
* ** * * ** ** * * *** ** * * ** * ** ****** = a;
** ** * * *** ********** * **** * ** * * *** * = b;
* *** * ** * *

};



class *** ** * public Shape

{

public:
*** * **** * *** * * * area ()
**** ******** **** * * *
* * * **** ******** ** * * **** * **** ** ** * * (width * height);
* ** ** * ** * * ***

};



class * public Shape

{
*
** ** * ** ** * * area ()
* ** * * * *** *
*** *** * *** ** *** ** * * * ** ** * ** * ** (width * height / 2);
* * * ** ** **** * *** *

};



int main (){
** ***** ** ** * * *****
* * * * ** * * * ****** * * ** * rect;
** ** * * * * * ** * * *** tri;
** ******* * ** ********* * * **** (5,3);
* *** * **** * **** *** (2,5);
** ****** * *** *** * * * ** * * ** ** * ** * ********* *** * **** * * **** ***** **** * endl;
*** * ** **** **** * ** 0;

}
answered by (-215 points)
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Hidden content!
#include *** * ** *



using * std;



class Shape

{
* * *
* ** * ** * * * * ** * * width, height;

public:
* * ** * *** ** ** set_data (float a, float b)
****** *** * *** *
* * * *** *** * ***** * * *** ** ** * * ** * * * = a;
* * * * * ** * * ** * ** ** * **** * = b;
*** * ** * * * ** * *

};



class ** * * * public Shape

{

public:
* * * **** ***** ** * area ()
* ***** * * * *
* ** ** ** * * * ** ** *** * ** * * * *** *** (width * height);
** * * **** ** *

};



class * * public Shape

{
****
* **** * ** **** area ()
* ** * * * ***** ** *** *
**** * * * * * * * * * * * ** * *** ** * *** * * *** * (width * height / 2);
** * **** * **** ***

};



int main (){
**** * **** * *
*** * * * ******** * * * rect;
** ****** * ** * * * ** ** * * tri;
**** * * *** * ** ** * **** * * (5,3);
* *** ** ******* ** * (2,5);
******* * *** * * * * * * * * ** *** **** * * * * ** * *** *** ** * ***** * endl;
*** ** * *** * *** *** 0;

}
answered by (-298 points)
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Hidden content!
#include **** ** ** *



using * *** std;



class Shape

{
* * *
* * ******** ** * * *** width, height;

public:
******** * ** *** * * * ** set_data (float a, float b)
* * *** * * ** **
* * ** * ** * ** ********* * ** ** **** * * * = a;
* * * ** * ** *** ** *** * ******* * * = b;
* * ** ** ** ***

};



class * *** * public Shape

{

public:
* * * * **** ** * area ()
* * * *** * * ** ** *
** *** **** **** * ***** * *** * * * ** ** ** (width * height);
** * * ***** ** * ** *

};



class ** * public Shape

{
*
* * * ** ** **** area ()
* * * ** ******** **
* ** * * ** ** * ** * ***** ** ***** * (width * height / 2);
*** * *** **** ** * **

};



int main (){
**** ** ***** * * ***
* * * * * **** **** ** **** rect;
**** ** ** * ** ****** ** tri;
* ****** ***** *** ** * ** * * (5,3);
* ** * ** ***** * * ** (2,5);
** ** ** * ** * * ** ** ** * ** ** * ** * * ** * * *** * * * ** **** * endl;
** ** * ***** ** ** *** ** 0;

}
answered by (237 points)
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Hidden content!
*** * * * *

using *** * std;



class * * *
* *** * **** * *****
* * * * ** * *** * * width;
* * **** * ** * ** ** height;
** * ** * * * ** ** * ** * * * height);
* ***** ** * *** * * ** * *** area();

};



class **
* * ****** ** * * * ** ****
*** * *** *** ** * ** width;
** ***** * * *** * height;
* *** * ** * * * * *** * ** * height);
* * *** ** ** * * * * * area();

};



void *** ** :: ***** *** swidth ,float * *
* * **** **** ** * ** = swidth;
* * * ** ** ** * * * ** * = ** * *

}



float *** :: area(){
* * *** ** ***** *** * **** ** * * * * * * (width * * ***

}



void ** * :: * ***** swidth ,float ****
**** *** * * * * = swidth;
*** ** * ** **** **** * *** = * *

}



float Triangle :: area(){
* * * ** ** * ** * * ** * **** * * * ((width * ** ****

}



int main (){
* ** ** * * ** **** * * rect;
* * * *** * * ** ** **** * tri;
* * *** ** * * ** *** ** (5,3);
* * ** * * ** ***** * * * (2,5);
* *** *** ** * *** ***** * * * * * * ** * ** * * * * * * * ** * * ****** * endl;
* * * *** * * ** ** *** 0;

}
answered by (-136 points)
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Hidden content!
** ** *** * *** * *

using **** std;



class ******
* * * * * * * * * *** **
* * ** ******* ** width;
* ** * * **** *** *** ** height;
*** ** ** * ** * * *** ** ***** * * ** * * height);
******* * * ** * *** * *** area();

};



class **
*** * *** ** * **
* **** ** **** **** width;
* * * * * ** * ** **** height;
* ***** ** * * * * * ** ***** * * *
* **** * *** **** * * ** area();

};



void * * :: * *** * * swidth ,float *****
* * ** ** *** * * **** = swidth;
** * * *** *** ** ** * = sheight;

}



float * :: area(){
* * *** ** * * * ** *** ** * ** * * * ** ** (width * **

}



void *** :: ** * * swidth ,float ** *
****** ** ** * ****** *** * = swidth;
* ** *** ** ** **** ** *** = sheight;

}



float Triangle :: area(){
**** ** * * ** ** *** *** * ** * *



int main (){
*** * ***** * * * rect;
******* ** ** ** ***** * ** tri;
* ** ** * ** ** * * * * (5,3);
** ** **** * * * * * *** (2,5);
** ** **** * **** ** * ** * *** ** ** *** * ****** ** * ** **** ** ***** * endl;
* ***** *** ** * 0;

}
answered by (-136 points)
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Hidden content!
* ** * * * ********
**** * ** * *



using namespace std;



class Rectangle{

public:
* **** *** ** ** * * *** set_data(int H, int W){
* ****** ****** ** **** **** * **** * * **** * = W;
* *** *** * * * ** ** * * * * * **** *** = H;
* * ** * * * ** **
* * ******** ***** area(){
* * ** ** * * * ** ** ****** ** ** * * * * * * ****** * *
* * * ***** * * ** **



private:
* * * * * *** * r_width;
* * * ** * **** ** ** * r_height;



};



class Triangle{

public:
** * ** ** * ** ** * ** set_data(int H, int W){
* * * * ** **** * * **** * ** ** **** ** * ***** = W;
** ******* * ** * **** ** * ** * ****** ** * = H;
** * ****** ** * *****
* ** ** ******* area(){
* ** ** * *** *** * **** * * * ** ***** * *** * *** ** ***
** * * ** * ** ******

private:
**** * * * * * * * * t_width;
*** * * * ** ** t_height;

};



int main()

{
** * *** * * ****** * * rect;
* ** ** ** * **** * * tri;
* * ** * * ** ** ** * * (5,3);
* * ********* *** * ** * * * (2,5);
* * ** ** * * * *** * **** rect.area() ***** * * * ****** * * << tri.area() << endl;
* ** * ** * * *** *** **** ** ** 0;

}
answered by (-368 points)
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Hidden content!
* ** * * *



using * std;



class * * {
** * * ** * ** * width, *******
* ** * ***
** ***** * *** *** * ** ** **** * *
***** ****** *** ***** area() * * ** **** *

};



void * ** *** * * (int x, int y) {
* * *** * * * *** * = x;
* * ***** * ** = y;

}



class * {
* * ***** * * ****** base,
*** * * * * ** *
* * *** * * ** * ****
** *** * ***** * * ** area() {return *** *

};



void ** * ** (int x, int y) {
*** **** = x;
** ****** ***** = y;

}



int main (){


* ****** * * ****** ** *** rect;
* * * * ** * ******* * tri;
* * ** ****** * ***** * (5,3);
* * ****** * ** ** * * (2,5);
* ** * ** *** * **** * ** ** *** * *** * *** * ** ** ** *** * * **** * * * * endl;
** ***** *** *** *** * 0;

}
answered by (-218 points)
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Hidden content!
//

// * * ** * *

// ********

//

// *** * * * by * * on ** * *

// * *** ** * © 2017年 *** All rights ** ***

//


** * * * * ***** *
* * *** * ** *****

#include ** * * **

using * * * std;



class shape {

public:
* * * * * * * * * * * * * ** ** * width, double height){
** * ** * * ** ** * * * * ****** * *** = width;
** * * * * ** *** * * * * *** * * = height;
*** ****** *** ** ** * * * * **



public:
* ** *** ** * ***** ***** ** w;
* * *** ** * ** ** **** h;

};



class ** * public shape{

public:
* *** ** **** * * area(){
* ** ** * ** ** * ****** * * * *** ** * *** ** * * *
** * * * ** * ** ** **

};



class * * * public shape{

public:
** ** ****** *** * ***** * area(){
* * ** * ** ** * * *** * **** ***** * **** * ** * ** *
**** ** ** ***

};



int main (){
***** * * * * * * **
* * * *** * ** *** * * rect;
* * ***** * *** * * *** * tri;
* * * ** * * * **** * * * * (5,3);
*** ** * *** * * * * ***** (2,5);
* ** **** **** *** * * * * * * **** ** ** * *** * * * ** ** *** * * * * * ****** endl;
** *** ** * *** * ** * 0;

}
answered by (-368 points)
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Hidden content!
*** *** **** *

using * *** std;



class *** *

{

public:
* ** * * *** * **** * * * a,int b);
**** ****** *** * area();
** * **** * ** ** *** * *** a_,b_;

};



void *** **** * ** *** a,int b)

{
* * * *** ** **** ** *
**** * *** *** **

}



int ** * ***

{
**** ** ** * ** ** * ** *

}





class * * ***

{
*****
** *** **** * * *** * * ** a,int b);
** * ******** * *** **** * area();
*** * **** ** * * * *** a_,b_;

};



void *** * * * * ** a,int b)

{
* ** * * *********
** ** * * ***

}



int ** * **

{
* *** ** * * **** **** a_*b_;

}



int main ()

{
* ** * * *** **** *** rect;
** ** *** * * *** * tri;
* * **** ** * *** * * ***** * (5,3);
* * ** * * *** **** (2,5);
* * ** *** *** * * * ** ** * *** * * * * * * ** ** * ****** * * * * * * ** ******* endl;
** ** ** *** * ** * * 0;

}
answered by (-324 points)
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