bookcar.java

贪食蛇的实现源码

package com.sample.java.bookcar;

import java.util.HashMap;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.*;

public class BookCar {

	
	/**
	 * 
	 * @return 打印所有书籍
	 */
	
	public void searchAllBooks(List list){
		Iterator it = list.iterator();
		while(it.hasNext()){
			Books book = (Books)it.next();
			System.out.println(book);
		}
	}
	
	/**
	 * 
	 * @return 把所有的书都导入到bookcar中来，并且打印出作者为lois4,lois6.lois10的书的详细，并且删除作者为lois16的书。
	 */
	
	public void searchBookCar(List list){
		String delkey = "";
		Map map = new HashMap();
		Iterator it = list.iterator();
		while(it.hasNext()){
			Books book = (Books)it.next();
			map.put(book.getName(), book);
		}
		
		//把map转换成Set进行迭代
		Set set = map.keySet();
		Iterator it1 = set.iterator();
		while(it1.hasNext()){
			String key =(String)it1.next();
			Books mbook = (Books)map.get(key);
			if(mbook.getAuthor().equals("lois4")||mbook.getAuthor().equals("lois6")||mbook.getAuthor().equals("lois10")){
				System.out.println(mbook);
				
			}
			if(mbook.getAuthor().equals("lois16")||mbook.getAuthor().equals("lois12")||mbook.getAuthor().equals("lois18")){
				System.out.println("222222222222222");
				delkey+=key+",";
			}
		}
		System.out.println("0000000000000000  delete   "  +delkey);
		String[] keys = delkey.split(",");
		for(int i = 0;i<keys.length;i++){
			System.out.println("-=-=-=-=-=-==-=-     "+keys[i]);
			map.remove(keys[i]);
		}
		
		Set dset = map.keySet();
		Iterator dit = dset.iterator();
		while(dit.hasNext()){
			String key = (String)dit.next();
			Books dbook = (Books)map.get(key);
			System.out.println(dbook);
		}
	}
}