#include <iostream> #include <cstring> using namespace std; class Point { private: int x,y; public: Point(int,int); void SetPoint(int,int); int GetX(){return x;} int GetY(){return y;} void Print(); }; class Circle:public Point { private: doubl…
#29.编写一个Java应用程序,设计一个汽车类Vehicle,包含的属性有车轮个数 wheels和车重weight.小车类Car是Vehicle的子类,其中包含的属性有载人数 loader.卡车类Truck是Car类的子类,其中包含的属性有载重量payload.每个 类都有构造方法和输出相关数据的方法.最后,写一个测试类来测试这些类的功 能. package hanqi; public class Vehicle { private int wheels; private int weight…
学习任务:设计并实现大数类 BigNum 代码示例: import java.util.Scanner; public class BigNum { private double num; public BigNum(double c) { num=c; System.out.println("BigNum Constructorrun"); } public void setNum(double c) { num=c; } public final double getNum() {…
学习内容:设计并实现加法器类 Adder 代码示例: package 实验三; import java.util.Scanner; public class Adder { private int num; public Adder(int a) { num=a; System.out.println("Adder Constructor run"); } public void setNum(int num) { this.num=num; } public final int ge…