首页技术正文

Java – 面向对象练习 – market

工程师士轩技术 2022年11月18日

0 收藏 472 点赞 4,944 浏览 1734 个字

Market
package market;

public class Market {
private String marname;
private Product[] productarr;

public Product[] getProductarr() {
return productarr;
}

public String getMarname() {
return marname;
}

public void setMarname(String marname) {
this.marname = marname;
}

public void setProductarr(Product[] productarr) {
      this.productarr = productarr;
}
Product sell(String name){
      for (int i = 0; i < productarr.length; i++) {
         if (productarr.getProname() == name){
            return productarr;
         }
      }
      return null;
}
}
Person
package market;

public class Person {
private String name;

public String getName() {
      return name;
}

public void setName(String name) {
      this.name = name;
}
Product shopping(Market market,String name){
      return market.sell(name);
}
}

Product
package market;

public class Product {
private String proname;

public void setProname(String proname) {
      this.proname = proname;
}

public String getProname() {
      return proname;
}
}

Shopping
package market;

public class Shopping {
public static void main(String[] args) {
      Product p1 = new Product();
      Product p2 = new Product();
      Product p3 = new Product();
      Product p4 = new Product();
      Product p5 = new Product();
//       创建商品类
      p1.setProname(“1”);
      p2.setProname(“2”);
      p3.setProname(“3”);
      p4.setProname(“4”);
      p5.setProname(“5”);
//       给商品类赋名
      Market m = new Market();
      m.setMarname(“k商店”);
      m.setProductarr(new Product[]{p1,p2,p3,p4,p5});
//       创建商店类、赋名、添加商品
      Person p = new Person();
      p.setName(“alex”);
      Product result = p.shopping(m,”20″);
      if (result != null){
         System.out.println(p.getName()+”在”+m.getMarname()+”买到了”+result.getProname());
      } else {
         System.out.println(p.getName()+”在”+m.getMarname()+”白跑了一趟”);
      }
}
}