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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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#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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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 (-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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