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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)
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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)
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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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