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  • ExceptionDemo1

    package

    practice2;

     

    import

    java.util.Scanner;

     

    public

    class ExceptionDemo2 {

     

    public static void main(String[] args) {

     

    try {

    className();

    } catch (Exception e) {

     

    e.getMessage(); // it is wrong

    System.err.println("class num out of bound");

    e.printStackTrace();

    } finally {

    System.out.println("Welcome for advice");

    }

     

    }

     

    private static void className() throws Exception {

    Scanner input = new Scanner(System.in);

    System.out.print("Please input the class Num(1~3): ");

     

    int s = input.nextInt();

    if (s == 1 || s == 2 || s == 3) {

    switch (s) {

     

    case 1:

    System.out.println("C#");

    break;

    case 2:

    System.out.println("Java");

    break;

    case 3:

    System.out.println("HuiBian");

    break;

    }

    } else {

    throw new Exception("it is wrong");

    }

    }

    }

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  • 原文地址:https://www.cnblogs.com/mabel/p/5945948.html
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