BufferedReader + StringTokenizer 예제

 

 

A. 라인단위로 입력이 처리되므로, 개행이 될 때마다 StringTokenizer를 새로 만드는 것에 주의

B. Integer.parseInt(br.readLine())

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine());

		int N = Integer.parseInt(st.nextToken());

		/* A 
		for (int i = 0; i < N; ++i) {
			st = new StringTokenizer(br.readLine());
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			System.out.printf("%d %d\n", a, b);
		}
		*/
        //B
        for (int i = 0; i < N; ++i) {			
			int a = Integer.parseInt(br.readLine());
			int b = Integer.parseInt(br.readLine());
			System.out.printf("%d %d\n", a, b);
		}
        
		

		br.close();

	}

}

ex)
4 
1 2
3 4
5 6
7 8

1 2
3 4
5 6
7 8

 

출처 : https://codechasseur.tistory.com/83