0 like 0 dislike
2.3k 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 | 2.3k 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:104.23.187.81
©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
| 2.5k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 1.7k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 1.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users