Pls help with error in c# can't convert string to int

Question

I got an error 'can't convert string to int' but string is number. What to do? Help pls.
https://sololearn.com/compiler-playground/cs4Q56FCueFX/?ref=app My code.

Answer 1

1.In Line no 14 you are "again" converting "FirstNum" variable of string type to int type and assigning it to SNum instead of doing that with "SecondNum" variable.

2.In Line no 48 in the default case you are assigning a string value to "Output" variable which is of type int.You can simply print the statement.

3.use break statement in default case too.

Answer 2

I agree with NB‎. output was declared as int, but in line 48 you are assigning a string to it.
yes, directly print the result. No need for the ouput variable.
also, you have mixed up and duplicated cases.

Answer 3

NB, Bob_Li thank you very much :)