0 like 0 dislike
4.2k 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 | 4.2k 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:172.70.126.8
©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
| 4.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.7k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users