n If you need handling
errors in your program use try/catch block .
n try/catch block can control the errors without
exit program .
n try/catch block consists
of two part
o
Try Block : put all
your code in this block .
o
Catch Block : write
code that will handling the error when it's occurred .
§ you can use type of Catch
to control specific error.
·
ArithmeticException : this
catch specialized in numerical errors
·
IndexOutOfRangeException : this catch specialized errors that occurred when an index is
outside the boundary of an array .
§ You can have multi catch
in your code each one specialized in specific error . in this case one block of
catch can be occurred .
Example 1:
public void
action()
{
try
{
int x = 5;
int y = 0;
int z = x / y;
}
catch
{
Console.WriteLine("an
error occurred");
}
}
or
try
{
int x = 5;
int
y = 0;
int z = x / y;
}
catch(ArithmeticException
ex)
{
Console.WriteLine("your
error is :");
Console.WriteLine(ex.Message);
}
Example 2 :
try
{
int[] x = new int[2];
x[0] = 85;
x[1] = 44;
x[2] = 33;
Console.WriteLine(x[2]);
}
catch(IndexOutOfRangeException
e)
{
Console.WriteLine("your
error is :");
Console.WriteLine(e.Message);
}
Example 3 :
public void action()
{
try
{
// write your code here
}
catch
(IndexOutOfRangeException err)
{
Console.WriteLine("your
error is :");
Console.WriteLine(err.Message);
}
catch (ArithmeticException
ex)
{
Console.WriteLine("your
error is :");
Console.WriteLine(ex.Message);
}
catch
{
Console.WriteLine("an
error occurred");
}
}
