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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

edited by | 2.8k views
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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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//

// *** * ***** *

// * *** * ***

//

// ** *** * 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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