7-5 查找电话号码 (10分)

使用HashMap存储信息

// package exercise;

import java.util.*;


public class Main{
//    public static String search(HashMap<String,String> hashMap){
//
//    }
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        HashMap<String,String> numberList = new HashMap<>();
        while(true){
            numberList.put(input.next(),input.next());
            if (numberList.get("noname") != null){
                break;
            }
        }
        String question = numberList.get("noname");
        if (numberList.get(question) != null){
            System.out.println(numberList.get(question));
        }else{
            System.out.println("Not found.");
        }

    }
}