Week five project three-multi-file organization multiple classes

Main.cpp

#include <iostream> #include "header.h" using namespace Std;int Main () {    CPoint X (2,5), Y (5,2), Z (7,8);    Ctriangle Tri1 (x, y, z);    cout<< "The circumference of the triangle is:" <<tri1.perimeter () << ", Area:" <<tri1.area () <<endl<<endl;    cout<< "The Triangle" << (Tri1.isrighttriangle ()? " Yes ":" not ") <<" right triangle "<<endl;    cout<< "The Triangle" << (Tri1.isisoscelestriangle ()? " Yes ":" not ") <<" isosceles triangle "<<endl;    return 0;}

Header.cpp

#include <iostream> #include <cmath> #include "header.h" using namespace std;  Cpoint::cpoint (double xx,double yy) {x=xx; Y=yy;}  void Cpoint::input () {char ch;  cout<< "Please enter the coordinate point (format x, y):";    while (1) {cin>>x>>ch>>y;    if (ch== ', ') break;  cout<< "Input data format does not conform to specifications, please re-enter \ n"; }}void Cpoint::output () {cout<< "(" <<x<< "," <<y<< ")" &LT;&LT;ENDL;}  Double CPoint::d Istance1 (CPoint p) const{double D;  D=sqrt ((p.x-x) * (p.x-x) + (p.y-y) * (p.y-y)); return D;}  void Ctriangle::settriangle (CPoint &x,cpoint &y,cpoint &z) {a=x;  B=y; C=z;}  Double ctriangle::p erimeter (void) {double A=b.distance1 (C), B=c.distance1 (a), C=a.distance1 (B); return (A + B + c);}  Double Ctriangle::area (void) {double A=b.distance1 (C), B=c.distance1 (a), C=a.distance1 (B);  Double s = (A + B + c)/2; return sqrt (S * (s-a) * (s-b) * (S-C));}  BOOL Ctriangle::isrighttriangle () {double A=b.distance1 (C), B=c.distance1 (a), C=a.distance1 (B);  Double max=a; If(B>max) max=b;  if (C>max) max=c; if ((max==a) && (ABS (A*A-B*B-C*C) <1e-7) | | ((max==b) && (ABS (B*B-A*A-C*C) <1e-7)) | |    ((max==c) && (ABS (C*C-B*B-A*A) <1e-7)))  return true; else return false;}  BOOL Ctriangle::isisoscelestriangle () {double A=b.distance1 (C), B=c.distance1 (a), C=a.distance1 (B); if (ABS (a) <1e-7) | | (ABS (B-C) <1e-7) | |    (ABS (C-A) <1e-7))  return true; else return false;}

Header.h

#ifndef header_h_included#define header_h_includedclass cpoint{private:  double x;  Double y;public:  CPoint (double xx=0,double yy=0);  Double Distance1 (CPoint p) const;  void input ();  void output ();}; Class Ctriangle{public:  ctriangle (CPoint &x,cpoint &y,cpoint &z): A (X), B (Y), C (Z) {}  void Settriangle (CPoint &x,cpoint &y,cpoint &z);  Double perimeter (void);  Double area (void);  BOOL Isrighttriangle ();  BOOL Isisoscelestriangle ();p rivate:  CPoint a,b,c;}; #endif//header_h_included

Operation Result:

Learning experience:

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Fifth week item three-multi-file organization multiple classes