当需要以相同的方式处理不同的异常时，在同一catch块中捕获多个异常非常有用。

import java.util.InputMismatchException;

import java.util.Scanner;

import java.util.logging.Level;// from 时代Java - nowjava.com

import java.util.logging.Logger;


public class Main {


    private static final Logger logger = Logger.getLogger("log.txt");


    public static void main(String[] args) {

        System.out.print("Enter a number: ");

        try {

            Scanner scanner = new Scanner(System.in);

            int number = scanner.nextInt();/* 来 自 n o w j a v a . c o m - 时  代  Java*/

            if (number < 0) {

                throw new InvalidParameter();

            }

            System.out.println("The number is: " + number);

        } catch (InputMismatchException | InvalidParameter e) {

            logger.log(Level.INFO, "Invalid input, try again");

        }

    }