[Java] 백준 15552번 : 빠른 A + B

 

1. readline() 사용 시 예외처리 필수

 

2. BufferedReader / BufferedWriter 사용

 

3. StringTokenizer 사용

 

4. BufferedReader / BufferedWriter / StringTokenizer flush 하고 close 하기

 

import java.io.*;
import java.util.StringTokenizer;

public class bj15552 {
    public static void main(String[] args) throws IOException {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
            
            int cycle = Integer.parseInt(br.readLine());
            
            for (int i = 0; i < cycle; i++) {
                StringTokenizer st = new StringTokenizer(br.readLine(), " ");
                
                int A = Integer.parseInt(st.nextToken());
                int B = Integer.parseInt(st.nextToken());
                
                bw.write(A+B + "\n");
            }
            bw.flush();
            bw.close();
            br.close();
    }
}