0 like 0 dislike
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 | 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:172.69.59.52
©2016-2024

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
| 943 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 678 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 854 views
12,783 questions
183,443 answers
172,219 comments
4,824 users