python try catch
try:
# Dangerous stuff
except ValueError:
# If you use try, at least 1 except block is mandatory!
# Handle it somehow / ignore
except (BadThingError, HorrbileThingError) as e:
# Hande it differently
except:
# This will catch every exception.
else:
# Else block is not mandatory.
# Dangerous stuff ended with no exception
finally:
# Finally block is not mandatory.
# This will ALWAYS happen after the above blocks.try catch exception
First try block try to handle it
if not then catch block will handle it.
Finally block will executed regardless
of the outcometry and exception
def loan_emi(amount, duration, rate, down_payment=0):
loan_amount = amount - down_payment
try:
emi = loan_amount * rate * ((1+rate)**duration) / (((1+rate)**duration)-1)
except ZeroDivisionError:
emi = loan_amount / duration
emi = math.ceil(emi)
return emiexception handling
#include <iostream>
#include<conio.h>
using namespace std;
int main()
{
int a=10, b=0, c;
// try block activates exception handling
try
{
if(b == 0)
{
// throw custom exception
throw "Division by zero not possible";
c = a/b;
}
}
catch(char* ex) // catches exception
{
cout<<ex;
}
return 0;
}exception handling and reprompting
boolean flag = false;
while(!flag)
{
//make the loop break, if no exception caught
flag = true;
try{
}
catch{
//make the loop repeat
flag = false;
}
}handling exceptions
I use try & catch & finally block
to handle exception if I will use the method
in different class.
Or If I will use it only once and if it is checked
exception then I use THROWS keyword on method signatureCopyright © 2021 Codeinu
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