How can we catch all kind of exceptions in a single catch block?

Answer 1

by simply placing possible errors that may occur in a statement in a try statement or using multiple try statements.

Answer 2

try {
// code
}
catch (...){
// code
}

Answer 3

In your "Catch" have a switch with the known values and a "Default" for everything else.

Alternatively, you could use if/else if there are not many known values.

Answer 4

try { } catch (Exception ex) { }

Exception is the base class from which all kinds of Exceptions are derived. So, this catch block effectively catches all kinds of Exceptions