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: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
| 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