集合練習——Map部分

練習：

輸入詩的名稱查詢出詩的內容，當輸入exit時，退出程式，“春曉”，“靜夜思”，“鵝”。

package CollectionPart;

public class Poetry {
    
    private String title;
    private String poet;
    private String content;
    public String getTitle() {
        return title;
    }
    public void setTitle(String title) {
        this.title = title;
    }
    public String getPoet() {
        return poet;
    }
    public void setPoet(String poet) {
        this.poet = poet;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
    @Override
    public String toString() {
        return "Poetry [title=" + title + ", poet=" + poet + ", content=" + content + "]";
    }
    public Poetry(String title, String poet, String content) {
        super();
        this.title = title;
        this.poet = poet;
        this.content = content;
    }
    public Poetry() {
        super();
    }
}

package CollectionPart;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Map1 {

    public static void main(String[] args) {
        
        Poetry p1 = new Poetry("春曉","孟浩然","春眠不覺曉，處處聞啼鳥。夜來風雨聲，花落知多少。");
        Poetry p2 = new Poetry("靜夜思","李白","床前明月光，疑是地上霜。舉頭望明月，低頭思故鄉。");
        Poetry p3 = new Poetry("詠鵝","駱賓王","鵝鵝鵝，曲項向天歌。白毛浮綠水，紅掌撥清波。");
        Map<String,Poetry> myMap = new HashMap<String,Poetry>();
        myMap.put(p1.getTitle(), p1);
        myMap.put(p2.getTitle(), p2);
        myMap.put(p3.getTitle(), p3);
        
        Scanner in = new Scanner(System.in);
        
        String string=null;
        do{
            System.out.println("請輸入要查找的詩歌的名稱：");
            String name = in.nextLine();
            findThePoem(myMap,name);
            System.out.println("是否繼續查找？");
            string = in.nextLine();
        }while(string.equals("是"));
        
    }

    private static void findThePoem(Map<String, Poetry> myMap, String name) {
        if(myMap.containsKey(name)){
            System.out.println("詩歌內容為：");
            System.out.println(myMap.get(name).getContent());
        }else{
            System.out.println("不存在該詩，或者收錄不完整。");
        }
        
        
        
    }
}