0 like 0 dislike
5.2k 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 | 5.2k 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
| 5k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.4k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users