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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++
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)
0 like 0 dislike
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)
0 like 0 dislike
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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