import java.util.Scanner;

public class Demo {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		System.out.println("1:除法開始:");
		try {
			System.out.println("請輸入除數:");
			String num1 = in.next();
			Integer x = Integer.parseInt(num1);
			System.out.println("請輸入被除數:");
			String num2 = in.next();
			Integer y = Integer.parseInt(num2);
			System.out.println("計算結果:" + (x / y));

		} catch (ArrayIndexOutOfBoundsException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (ArithmeticException e) {
			e.printStackTrace();
		} finally {
			System.out.println("不管是否異常都執行");
		}
		System.out.println("計算結束！");
		in.close();
	}

}
 

Java中異常處理流程: