java定义一个circle类,有一个属性半径(radius),半径的初始值为5
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#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:
publicclassTest{\x05publicstaticvoidmain(String[]args){\x05\x05Rectangler=newRectangle(5,4);\x05\x05
packagecom.test;publicclassComplexNum{\x05//Z=a+bi\x05privateintRez;\x05//实部\x05privateintImz;\x05//
classCircle{protecteddoubleradius;publicCircle(){radius=0;}publicCircle(doubleradius){thi
单看你这几句,好像是没错误.你把包含Pointd1=newPoint(2.0,2.0,2.0);Circlec1=newCircle(d1,2.2);这两句的类的代码全部贴出来吧
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
#includeusingnamespacestd;#definePI3.14classPoint{public:\x09Point():m_x(0),m_y(0){}\x09Point(double
2种差不多的方法,自己在VC6.0上面试试#include<iostream>usingnamespacestd;#definepi3.14classcircle{public:circl
classClock{privateinthourse;privateintminute;privateintsecond;publicClock(){this.hourse=0;this.minut
publicclassTriangle{\x09inta;\x09intb;\x09intc;\x09publicTriangle(inta,intb,intc){\x09\x09this.a=a;\
publicclassCircle{privatedoubleradius;publicCircle(doubler){this.radius=r;}publicstaticvoidmain(Stri
abstractclassShape{publicShape(){}publicfloatGetPerim(){return0;}}classRectangleextendsShape{private
不要提出这种问题,代码还是自己动手写的好,写的过程中遇到麻烦,再拿出来问的话,我想会有更多人乐意帮你解答的再问:来不及哦!!今天晚上要交!!没时间慢慢写!!我对c++也不是很熟!急求高手流利的给个程序
publicclassTestShape{publicstaticvoidmain(Stringargs[]){Shapes=newShape();Circlec=newCircle(5,"yello
public class Circle { double x,y,r; //无参构造方法 public Circle()
根据题意实现代码如下:#include <iostream>#include <cmath>#include <string>usin