0 like 0 dislike
5.6k 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 | 5.6k 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:104.23.243.109
©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
| 5.3k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.6k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users