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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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