05-04 Lab exercise 3: Write class shape with width and height

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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
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27 Answers

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Hidden content!
**** * ** * * *** * *

using namespace std;

class Rectangle{
**** * * * ** ***** ****
** * *** ** * ** * ****** ****** * ** * *** **** set_data(int n,int r);
*** * * * ** * * * * ** * * ** ******* ** a;
**** **** ** *** * * * ** * * * **** * *** *** *** b;
** ** * * *** * * ** ** * * ** * ** * * area();

};

void ** **** * n,int r){
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}

int * ****
*** ** * *** *** *** a*b;

}

class Triangle{
** * * *** * * **
* * ***** * ***** * ** * ** * ** *** ** * * * area();
* **** *** *** ** ** * ** *** ***** * ** set_data(int s,int t);
****** * * * *** *** * * ** *** ** * ** c;
*** ***** ** ** * ** * ****** *** **** d;

};

void *** * * * s,int t){
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}

int *** ** *
** * ***** * * *** ** ** ** * c*d/2;

}

int main (){
* ** ** * * ** * ** rect;
** ** ** * ** * * * ** * tri;
* * * * ** ** * ** * (5,3);
** * * ** * ** * * (2,5);
** * ***** ** *** ** * << rect.area() << ** * ** ** ** * * tri.area() << endl;
** *** * * **** ** ** * *** * * 0;

}
answered by (-384 points)
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Hidden content!
#include<iostream>



using namespace std;




***** * ** * * **** **** * rect
* * ** ** *** ** ** ** *
*** ******** *** * *** * * * *
**** * *** * * ** ** * **** ** *** ***** a,b;
* *** *** * * * *** * * * ** * area();
* * ** * ** * * *
* ** * * * * * * *** * tri
*** * **** * **** ****
*** * ** ** ** *** * **** * * * * ** *** **
* ** * **** **** * ** *** * * *** ** * ** a,b;
** *** * * ** ** *** ***** * ** ** * * ** * * area();
* ** ** * ** * * *** **
** ***** * * *** * * ***** * rect ::area()
** *** ** *** ** * **
** ** * * ****** ** ** ** * *  a*b;
*** **** ** *** ** *
* ** *** * *** ** tri ::area(){
** ** *** * *** * * **  a*b/2;

}

int main ()

{
* * * ** *** *** *** t;
*********** * *** * * c;
**** ** **** * * *****
** * * ** * ********
* ** * ***** * * * * *
**** * * * ** * *** * **
* * * ** * ** * * << t.area()<< ";" << c.area() << endl;
* *** ***** * ** **** *** * 0;

}
answered by (-249 points)
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Hidden content!
#include * *

using namespace std;



class Rectangle

{

private:
** *** * ** * * * * * wid,hei;

public:
* * * ***** * * set_data(int a ,int b)
* ** * * * *** **** *** *
* ***** *** * * ** * ** * ** **** * *
**** * ** * * * * * * *** *** * ** ** *
* * * ** * * * * *
**** ** * * ** * * * ** area(void)
** * *** ** ** **
* * **** **** *** * ** **** * * * ** * wid*hei;
** * ** **** ***** ** *



};

class Triangle

{

private:
***** * * *** ** *** wid,hei;

public:
* * ****** * * * ** ** *** set_data(int a ,int b)
** * ** ** **** ********
**** * **** ***** *** * * ** * * *** * * ***
* * ** * ** ** * * * ** **** * * * * * * * *
* ** * * * * ****
** *** * * * **** ***** area(void)
* ** * * * ** ******
* ****** ****** ** ******* * * ** ***** * ** * * * wid*hei/2;
*** * * * ** ** * ** *





};





int main()

{
*** * **** * * * ** **** *** rect;
* ** * * **** *** *** * * *** **** tri;
* * * ** ****** * * * (5,3);
* ***** ** * * * *** (2,5);
** * * ** ** * * ** * ** * ******* << rect.area() * *** ** * **** ** * * ** * * tri.area() << endl;
* ***** *** * * ** ***** 0;

}
answered by (0 points)
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Hidden content!
#include *** * ** ***



using namespace std;



class shape

{
* * * *** * * * * *
* * * *** ** * ** set_data (int x, int y)
* * * * ** ** * * *
** * ** * * * * * * ** * * ** *** *** **** *** = x;
*********** * * * * * * *** *** **** = y;
* * * * * ** **** ***
**** * ** * * width, height;



};



class Rectangle : public shape

{
** ****** *** * * ***** *
** * * **** * * * ** **** * area ()
** * ****** ** ** * **** * * ** * * *
** * ***** ** * * **** **** **** * ** ** ** ** **** * ** a;
* ** * * * * * *** * * * * ** *** ** ** ***** ** *** * ** ** ** = width * height;
**** * *** * * * *** * * ** * * ** * * ** ** ***** ** * ** * * * a;
* ** *** * *** * ** * * ***** * * ** * ** * * *** ** *



};



class Triangle : public shape

{
* *** ** * ** *** * **
* *** * * ***** ** area()
** * * ** ** **
* **** *** ** *** **** ** **** **** * ** *** * **** ***** a;
*** ** * **** * ** * * * * *** ** * ** * = .5 *width *height;
**** * * * ** **** * * * * * **** * * * ** * * * * a;
* ** * * * ** **

};

int main (){


** * *** * *** * ***** ** rect;
***** * * ** * ******* tri;
** *** ** ** *** ********* * (5,3);
** * * ** * ** ***** * * * * * (2,5);
** **** ** * * * * * ** << rect.area() << * * ** * << tri.area() << endl;


* * ******** * *** *** *** **** 0;

}
answered by (5.9k points)
reshown by
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Hidden content!
#include<iostream>

using namespace std;



class Rectangle{
* * *** * * * * * * * * width_value,height_value;
*** ** **** * *** *
* * * * ** ******* *** ** *** * *** **** *** * ** *** v1,int v2){
*** *** * *** * ** * * * * * * * * **** ** ** **** * ** * ** ***** *
** * *** ** ** ** * * ** ***** ** **** **** * * ** **** * *    
*** * ******* ** * * * * ** * * * *
* ** * ** * * ** * * *** ** * *** * * ** * area(){
** * ** **** **** * * *** ******** * * *** * **** * ** * *** * * (width_value*height_value);
* * * * * ****** * * * ** * * * * *** *
* * * * ** **** * *** **** **

};



class Triangle{
* *** ** * * *** ** * ** *** **
** * * ** * * ** ****** * ** *** * width_value,height_value;
* * ***** ** *** *
** * ** * ** * ** ** * ** * * *** * ** *** v1,int v2){
*** ** *** * * ** ***** *** * ** * * * * * * * * ** **** **
***** ** ** ** * * ** * * *** * ***** ** *** ** ** *** *** ***** *** ** * *    
* * ** ** ** * * *** *** **** * * ** *
*** ** * * ** * * ****** * * *** * ** *** * ** area(){
***** *** * * ** ** * ** * ** **** *** *** * **** (width_value*height_value)/2;
** **** * * * *** ****** * ***** * ***

};



int main (){


** ** ** * **** ** * *** *** rect;
** * * ** * * * * **** * tri;
* * * ***** *** *** ** ** (5,3);
**** * * * * *** * * * * * * (2,5);
* **** * * * * * * * << rect.area() << ";" << tri.area() << endl;
* * * ** ** * ****** 0;

}
answered by (-412 points)
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 (5.2k points)
0 like 0 dislike
Hidden content!
#include *** ****** **

using namespace std;

class Rectangle

{

public:
* * * * * ***** ** *** i,j;
** * * * * ** ** *** set_data(int a,int b)
* * *** * * ** **
* ** **** * * * * *** *** * **** * **** *** * * * ****
*** * * * *** **** * * * **** ** * *** * ***
* * *** *** *** * * ***
** *** * ** ** ** * area()
****** ** ** * ** ***
******** *** ** * *** * *** * ** * * **** * i*j;
** * * * ******** **

};

class Triangle

{

public:
* ** ** * * * ** *** i,j;
*** *** **** * * * ** set_data(int a,int b)
* **** * * ** * *
**** ** * ** ******* * * *** ** **** * *** **
*** *** ** * ** ** * * * ** *** *** * *
* * ** *** * *****
** ***** *** ** * *** * area()
*** * ** ** ** ****
** ***** * * ****** * * * * ** ** **** **** ****** ** * * i*j/2;
**** * *** ** * * ***

};



int main()

{


**** * ** **** *** ** ** * * * rect;
** * **** * * **** * * tri;
** ** ***** * ** * * * * ** ** (5,3);
*** ** ** * * ** * * *** *** * (2,5);
* * * * ** ** ** **** << rect.area() << * * ** ** << tri.area() << endl;
** * * * ** ** 0;

}
answered by (0 points)
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