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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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#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)
0 like 0 dislike
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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//

// *** ** **

// * *

//

// * ****** * 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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