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C# C# Objects Inheritance Catching Exceptions

Vedang Patel
Vedang Patel
7,114 Points
Posted by Vedang Patel
Vedang Patel
7,114 Points

I tried but don't know what to do

Here's how I wrote the code. Now wrap the testing logic with a try/catch and write the message "Value is out of bounds!" to the console if the exception is caught.

Program.cs 
int value = int.Parse(Console.ReadLine());

if (value < 0 || value > 20)
{
    throw new System.Exception();
}

Console.WriteLine(string.Format("You entered {0}",value));

4 Answers

Damien Watson
Damien Watson
27,419 Points
Damien Watson
Damien Watson
27,419 Points

Hi Vedang, You just need to wrap a 'try' around the items you want to check. The exception gets thrown and the try fails if the the value is < 0 and > 20.

The catch is then executed, writing the line 'out of bounds'.

int value = int.Parse(Console.ReadLine());

try {
    if (value < 0 || value > 20) {
        throw new System.Exception();
    }
    Console.WriteLine(string.Format("You entered {0}",value));
}
catch(Exception e) {
    Console.WriteLine("Value is out of bounds!");   
}
Vedang Patel
Vedang Patel
7,114 Points
Vedang Patel
Vedang Patel
7,114 Points

thank you Damien Watson

Tim Washum
Tim Washum
14,215 Points

Did you mean to put the ''e" in catch(Exception e) ? I put it without the "e" and it passed.

Helmuts Reinis
Helmuts Reinis
1,021 Points
Helmuts Reinis
Helmuts Reinis
1,021 Points 
int value = int.Parse(Console.ReadLine());
try
{
    if (value < 0 || value > 20)
    {    
        throw new System.Exception();
    }

}
catch(Exception)
{
    Console.WriteLine("Value is out of bounds!");
}
Console.WriteLine(string.Format("You entered {0}", value));


Here you go!
OMKAR POOJARI
OMKAR POOJARI
6,352 Points
OMKAR POOJARI
OMKAR POOJARI
6,352 Points

in catch why did we add e with the exception is it a variable to store the error message

Quanhu LEE
Quanhu LEE
665 Points
Quanhu LEE
Quanhu LEE
665 Points

int value = int.Parse(Console.ReadLine());

try { if (value < 0 || value > 20) { throw new System.Exception(); } } catch(Exception) { Console.WriteLine("Value is out of bounds!");
} Console.WriteLine(string.Format("You entered {0}",value));