백준[17219]번 : 비밀번호 찾기 ( JAVA )

https://www.acmicpc.net/problem/17219

17219번: 비밀번호 찾기

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Code

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.StringTokenizer;

public class Main {
	
	static int m;
	
	public static void main(String[] args) throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
		
		HashMap<String,String> map = new HashMap<>();
		
		StringTokenizer st = new StringTokenizer(br.readLine());
		
		int t = Integer.parseInt(st.nextToken());
		int n = Integer.parseInt(st.nextToken());
		
		while(t-- > 0) {
			st = new StringTokenizer(br.readLine());
			
			map.put(st.nextToken(),st.nextToken());
		}
		
		while(n-- > 0) {
			String address = br.readLine();
			
			bw.write(map.get(address)+"\n");
		}
		
		br.close();
		bw.close();
	}
	
}

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HashMap의 key,value를 이용해서 풀었다.