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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)
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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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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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