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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)
0 like 0 dislike
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)
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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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//

// ** *

// * *

//

// * * * *** 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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