선택문_1 switch-case public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("첫 번째 정수: "); int num1 = sc.nextInt(); System.out.println("두 번째 정수: "); int num2 = sc.nextInt(); System.out.println("연산자 입력(+, -, *, /)"); String op = sc.next(); /* * nextInt(): int * nextDouble(): double * next(): String * nextBoolean(): boolean */ switch(op) { case "+": System.out..