集册 Java实例教程 从Map中获取值并填充到另一个类中

从Map中获取值并填充到另一个类中

欢马劈雪     最近更新时间:2020-01-02 10:19:05

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从Map中获取值并填充到另一个类中

import java.util.HashMap;

import java.util.Map;


public class Main {/*来 自 nowjava.com*/

  public static void main(String[] arguments) {

    Map<String, Float> quality = new HashMap();

    float price1 = 3.00F;

    quality.put("mint", price1);

    float price2 = 2.00F;

    quality.put("near mint", price2);

    float price3 = 1.50F;

    quality.put("very fine", price3);

    float price4 = 1.00F;

    quality.put("fine", price4);

    float price5 = 0.50F;

    quality.put("good", price5);/*from NowJava.com*/

    float price6 = 0.25F;

    quality.put("poor", price6);

    // set up collection

    Product[] comix = new Product[3];

    comix[0] = new Product("Spider-Man", "1A", "fine", 5_000.00F);

    comix[0].setPrice((Float) quality.get(comix[0].condition));

    comix[1] = new Product("Hulk", "181", "near mint", 240.00F);

    comix[1].setPrice((Float) quality.get(comix[1].condition));

    comix[2] = new Product("Cerebus", "1A", "good", 144.00F);

    comix[2].setPrice((Float) quality.get(comix[2].condition));

    for (int i = 0; i < comix.length; i++) {

      System.out.println("Title: " + comix[i].title);

      System.out.println("Issue: " + comix[i].issueNumber);

      System.out.println("Condition: " + comix[i].condition);

      System.out.println("Price: $" + comix[i].price + "\n");

    }

  }

}


class Product {

  String title;

  String issueNumber;

  String condition;

  
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