0 like 0 dislike
3.1k 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 | 3.1k 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:172.69.59.126
©2016-2025

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
| 3.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.1k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users