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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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#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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****** ** **
** * *** ** ***



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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//

// * ***

// ** * * *

//

// ** 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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