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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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#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)
0 like 0 dislike
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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