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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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#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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//

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

// ** ***

//

// ** * *** * 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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