convert string to int

int numVal = Int32.Parse("-105");
Console.WriteLine(numVal);
// Output: -105

int j;
bool result = Int32.TryParse("-105", out j);
if (true == result)
    Console.WriteLine(j);
else
    Console.WriteLine("String could not be parsed.");
// Output: -105

try
{
    int m = Int32.Parse("abc");
}
catch (FormatException e)
{
    Console.WriteLine(e.Message);
}
// Output: Input string was not in a correct format.

string inputString = "abc";
int numValue;
bool parsed = Int32.TryParse(inputString, out numValue);
 
if (!parsed)
    Console.WriteLine("Int32.TryParse could not parse '{0}' to an int.\n", inputString);
// Output: Int32.TryParse could not parse 'abc' to an int.

int abc = Convert.ToInt32("12");

string someIntNumber = "14";
string invalidIntnumber = "14abc"
int result;
Convert.ToInt32(someIntNumber); //works fine
Convert.ToInt32(invalidIntnumber); //raises an exception

bool success1 = int.TryParse(someIntNumber, out result); //returns true. result contains 14
bool success2 = int.TryParse(invalidIntnumber, out result); //returns false. result contains 0