编写类定义半径周长面积颜色

用java语言描述：publicclassCircle{privatedoubleRadius;//半径publicCircle(){}publicCircle(doubleradius){Radiu

importjava.util.Scanner;publicclassTest{publicstaticvoidmain(Stringagrs[]){Scannera=newScanner(Syste

importjava.util.Scanner;classRound{\x09publicdoubleperimeter(doubleradius){\x09\x09returnradius*2;\x

classCircle{\x09privatedoubler;\x09publicvoidsetR(doubler)\x09{\x09\x09this.r=r;\x09}\x09publicdoubl

voidmain(){floatr,s,l;floatpi=3.1415;printf("输入一个圆的半径:\n");scanf("%f",&r);if(

#include <iostream>using namespace std;class CShape{public:CShape(void){

#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Circle(doublea=0);Ci

作业题也上来了.想要学vc那就不要直接要答案.你如果是小学生,我可以告诉你答案,并且给你详细的解答.如果你是大学生,对不起,看看教科书再说吧.

楼上的方法应该没错,可感觉对于表现java面向对象的特性没有表现出来,下面是我写的,应该非常清楚明了了importjava.io.BufferedReader;importjava.io.InputS

classTriangle{private:\x05doublea;\x05doubleb;\x05doublec;public:\x05Triangle():a(0),b(0),c(0){}\x05

#include#definepai3.15149256voidmain(){doubler,c,s;printf("pleaseinputr\n")scanf("%lf",&r);printf("c

（法1）#includeusingnamespacestd;#definePI3.1415926classCircle{doubler;public:Circle(doubleR=0){r=R;}vo

#include"stdafx.h"#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Ci

usingSystem;classRectangle{privateintwidth;privateintheight;publicRectangle(intw,inth){width=w;heigh

classcircle{doublerd;//半径成员public:circle(){rd=0.0;}//构造函数cirle(doubleb){rd=b;}//重构构造函数doublezc(){ret

#include"stdio.h"#definePI3.141592653//定义πintmain(void){floatC,A,V,r;printf("请输入半径：");//提示输入scanf("%

Console.WriteLine("请输入圆的半径");intr=int.Parse(Console.ReadLine());doublecircle=2*3.14*r;doublearea=3.1

1.functions=mianji(r)s=pi*r*r;end2.functionl=zhouchang(r)l=2*pi*r;end

C编程求助编写一个基于对象的程序：输入半径,计算圆的周长和面积并输出实现#include

clearinput"请输入圆的半径："torl=2*pi()*rs=pi()*r*r?"周长是：",l?"面积是：",s