import java.util.Scanner; public class Main{ public static void main(String[] args) throws Exception { int a; int b; Scanner one = new Scanner(System.in); a = one.nextInt(); b = one.nextInt(); one.close(); System.out.println(a+b); System.out.println(a-b); System.out.println(a*b); System.out.println(a/b); System.out.println(a%b); } } 입력 결과 7 3 10 4 21 2 1 입력은 scanner를 사용하였음. 결과값이 정수로 나오기 때문에 변수형은..