练习 - 完成捕获特定异常的挑战活动

9 分钟

本模块中的代码挑战可以巩固你学到的知识，帮助你在继续操作之前增强自信。

捕获特定异常挑战

在此挑战中，为你提供了一个代码示例，该代码示例可生成多个不同的异常类型。单个 try 代码块包含生成异常的代码。包含多个 catch 子句来处理特定的异常类型。

你需要更新代码示例，以便捕获每个异常，并在控制台中显示相应的错误消息。

下面是此挑战的要求：

确保 Program.cs 文件包含以下代码示例：

try
{
    int num1 = int.MaxValue;
    int num2 = int.MaxValue;
    int result = num1 + num2;
    Console.WriteLine("Result: " + result);

    string str = null;
    int length = str.Length;
    Console.WriteLine("String Length: " + length);

    int[] numbers = new int[5];
    numbers[5] = 10;
    Console.WriteLine("Number at index 5: " + numbers[5]);

    int num3 = 10;
    int num4 = 0;
    int result2 = num3 / num4;
    Console.WriteLine("Result: " + result2);
}
catch (OverflowException ex)
{
    Console.WriteLine("Error: The number is too large to be represented as an integer." + ex.Message);
}
catch (NullReferenceException ex)
{
    Console.WriteLine("Error: The reference is null." + ex.Message);
}
catch (IndexOutOfRangeException ex)
{
    Console.WriteLine("Error: Index out of range." + ex.Message);
}
catch (DivideByZeroException ex)
{
    Console.WriteLine("Error: Cannot divide by zero." + ex.Message);
}

Console.WriteLine("Exiting program.");

更新代码，以便在发生异常类型时在控制台中显示每个错误消息。

验证更新的代码是否将以下消息打印到控制台：

Error: The number is too large to be represented as an integer. Arithmetic operation resulted in an overflow.
Error: The reference is null. Object reference not set to an instance of an object.
Error: Index out of range. Index was outside the bounds of the array.
Error: Cannot divide by zero. Attempted to divide by zero.
Exiting program.

祝你好运！

练习 - 完成捕获特定异常的挑战活动

捕获特定异常挑战

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