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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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Hidden content!
#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)
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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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