[Java]백준 1001번: 입출력과 사칙연산 단계 - A-B

1. Scanner 사용

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        
        System.out.println(a-b);
        scan.close();
    }
}

2. BufferedReader 사용

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

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] str = br.readLine().split(" ");
        int a = Integer.parseInt(str[0]);
        int b = Integer.parseInt(str[1]);
        
        System.out.println(a-b);
        br.close();
    }
}