0 like 0 dislike
5.3k views

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

edited by | 5.3k views
0 0
Called for Help
0 0
Called for Help

27 Answers

0 like 0 dislike
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)
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 (-215 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 (-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)
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)
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)
0 like 0 dislike
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)
0 like 0 dislike
Hidden content!
//

// **

// * * *

//

// * * * * 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)
0 like 0 dislike
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)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.95
©2016-2026

Related questions

0 like 0 dislike
30 answers
[Exercise] Coding (C) - asked May 18, 2017 in C++
ID: 24769 - Available when: Unlimited - Due to: Unlimited
| 5.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users