C # Study Notes ---- errors and exceptions

Generally, the exception class system. Exception is derived from system. object.

 

These two important classes are derived from system. Exception:

System. systemexception ---- used for exceptions thrown by the. NET Runtime

System. applicationexception ---- third-party-defined exception base class

 

Stackoverflowexception ---- the memory area allocated to the stack is full and an exception is thrown.

Endofstreamexception ---- thrown at the end of the file

Overflowexception ---- if you want to forcibly convert data in the checked environment, an exception will be thrown.

 

Capture exceptions, for example:

try{    // code for normal execution}catch{    // error handling}finally{    // clean up}

User-defined exception type, for example:

class SalesSpyFoundException:ApplicationException{    public SalesSpyFoundException(string spyName)    :base("Sales spy found,with name" + spyName)    {    }    public SalesSpyFoundException(        string spyName,Exception innerException)    :base(        "Sales spy found with name" + spyName,innerException)    {    }}

 

C # Study Notes ---- errors and exceptions