0 like 0 dislike
6.1k 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 | 6.1k 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:162.159.115.10
©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
| 6.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 4k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users