c 定义一个圆类circle,要求分别用成员函数和友元函数
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/19 04:37:30
![c 定义一个圆类circle,要求分别用成员函数和友元函数](/uploads/image/f/491295-39-5.jpg?t=c+%E5%AE%9A%E4%B9%89%E4%B8%80%E4%B8%AA%E5%9C%86%E7%B1%BBcircle%2C%E8%A6%81%E6%B1%82%E5%88%86%E5%88%AB%E7%94%A8%E6%88%90%E5%91%98%E5%87%BD%E6%95%B0%E5%92%8C%E5%8F%8B%E5%85%83%E5%87%BD%E6%95%B0)
classCircle{private:intm_nR;public:Circle(intnR){m_nR=nR;}floatOutputF(){return2*3.1415926*(float)m_
#include"stdio.h"constdoubleP=3.14;classCircle{public:virtualdoubleArea();voidR(doubles);doublegetr(
#include"stdio.h"#include"graphics.h"#definePI3.1415926;classcircle{public:voidset_x(){scanf("%d%d%d
namespaceEX1_4{publicclassshape{publicdoublePI=3.14;}publicclassRectangle:shape{publicintx,y,s,l;pub
classcircle{public:circle(doubleradius):_radius(radius){}~circle(void);private:double_radius;public:
#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Circle(doublea=0);Ci
classCircle{public:Circle(intnr){r=nr;}Circle(){}public:intr;intArea(){return3.14*r*r;}};classB{publ
classpoint;classshape{public:virtualdoublecircumference()=0;virtualdoublearea()=0;};#definePI3.14159
#includeusingnamespacestd;classcircle{private:doubleradius;public:circle(doubler=0.0);voidinput();do
#include#include#include#include#definePI3.14159usingnamespacestd;classShape{public:virtualfloatgetA
把这三个类分别放到三个.java文件中,然后编译运行即可.publicclassCircle{privatedoubler;publicCircle(doubler){this.r=r;}public
2种差不多的方法,自己在VC6.0上面试试#include<iostream>usingnamespacestd;#definepi3.14classcircle{public:circl
#include"stdafx.h"#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Ci
#includeusingnamespacestd;classCircle{public:Circle(doubler=0):radius(r){}doubleArea(){return3.14*ra
#includeusingstd::cout;usingstd::endl;#definePI3.14159structpoint{\x09intx,y;\x09point(int_x,int_y):
publicclassCircle{privatedoubleradius;publicCircle(doubler){this.radius=r;}publicstaticvoidmain(Stri
#include#definePI3.14159usingnamespacestd;classcircle{private:doubleRadius;public:voidjiandan();};vo
根据题意实现代码如下:#include <iostream>#include <cmath>#include <string>usin
publicclassWb{doublei=5.0;doublefindArea(){returnradius*radiu*3.14159;}publicstaticvoidmain(string[]