for문으로 연산자 값받아서 계산하기

public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println("수식을 입력하세요: ");

		Scanner in = new Scanner(System.in);

		int x = in.nextInt();
		String operator = in.next();
		int y = in.nextInt();

		int sum = 0;

		if (operator.equals("+")) {
			sum = x + y;
		} else if (operator.equals("-")) {
			sum = x - y;
		} else if (operator.equals("*")) {
			sum = x * y;
		} else if (operator.equals("/")) {
			sum = x / y;
		} else {
			System.out.println("잘못입력하셨습니다.");
		}
		System.out.println(sum);

	}
    
    
![](https://velog.velcdn.com/images%2Fsodal14%2Fpost%2Fbc2ec6f1-1a20-418c-9a6b-1bef2a25065f%2Fimage.png)