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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)
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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