用子类继承父类，来制作选择披萨

子类继承父类，来制作选择披萨"/>

用子类继承父类，来制作选择披萨

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

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();

}


}
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();


}


}
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;
}


}
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);
}
}
}