java子类继承父类实例-披萨的选择实现代码

时间:2022-04-21 06:52:50

编写程序实现比萨制作。需求说明编写程序,接收用户输入的信息,选择需要制作的比萨。可供选择的比萨有:培根比萨和海鲜比萨。

实现思路及关键代码

1)分析培根比萨和海鲜比萨

2)定义比萨类

3)属性:名称、价格、大小

4)方法:展示

5)定义培根比萨和海鲜比萨继承自比萨类

6)定义比萨工厂类,根据输入信息产生具体的比萨对象

Pizza.java

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package zuoye;
import java.util.Scanner;
//父类
public class Pizza {
    String name;
    double price;
    int size;
    public Pizza(String name){
        this.name=name;
    }
    public void display(){
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入披萨大小:");
        size=sc.nextint();
        System.out.println("请输入披萨价格:");
        price=sc.nextdouble();
    }
}

PeiGen.java

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package zuoye;
import java.util.Scanner;
//子类培根披萨
public class PeiGen extends Pizza {
    // double weight;
    public PeiGen(String name) {
        super(name);
    }
    public double peigen() {
        System.out.println("输入培根克数:");
        Scanner s = new Scanner(System.in);
        return s.nextdouble();
    }
}

SeaFood.java

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package zuoye;
import java.util.Scanner;
//子类海鲜披萨
public class SeaFood extends Pizza{
    public SeaFood(String name) {
        super(name);
    }
    public String seafood() {
        System.out.println("输入配料信息:");
        Scanner s=new Scanner(System.in);
        String peiliao=s.next();
        return peiliao;
    }
}

Work.java

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package zuoye;
import java.util.Scanner;
public class Work {
    public static void main(String[] args) {
        System.out.println("请选择想要的披萨(1.培根披萨 2.海鲜披萨)");
        Scanner s = new Scanner(System.in);
        int n = s.nextint();
        if (n == 1) {
            PeiGen pg = new PeiGen("培根披萨");
            double b=pg.peigen();
            pg.display();
            System.out.println("名称" + pg.name + "\n价格:" + pg.price + "\n大小:" + pg.size + "\n培根克数:" +b);
        } else if (n == 2) {
            SeaFood sf = new SeaFood("海鲜披萨");
            String a=sf.seafood();
            sf.display();
            System.out.println("名称" + sf.name + "\n价格:" + sf.price + "\n大小:" + sf.size + "\n配料:" +a);
        }
    }
}

结果展示:

java子类继承父类实例-披萨的选择实现代码

总结

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原文链接:http://blog.csdn.net/u012060033/article/details/76098807