1 public static void main(String[] args) {
2 Scanner sc = new Scanner(System.in);
3 System.out.println("請輸入數字給第一個加數賦值:");
4 int num1 = 0;
5 try {
6 num1 = sc.nextInt();
7 } catch (Exception ex) {
8 System.out.println("輸入的信息中出現數字以外的其他字符。");
9 }
10 int num2 = 123;
11 System.out.println(num1 + "+" + num2 + "=" + (num1 + num2));
12
13 }
