0 like 0 dislike
3.1k 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 | 3.1k 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:172.69.17.155
©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
| 3.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.1k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users