1 reply to this topic

[Onlyorange]

First one is :
takes a string from input in the format <integer1><operation><integer2> and prints an integer result based on the operation as follows (example i/o in parentheses):

a: the sum plus six (input: 2a3 output: 11)
b: twice the sum (input: 2b3 output: 10)
c: 100 minus the product (input: 2c3 output: 94)

And also this program needs to be easy to add new operations as the need arises, possibly hundreds of them.

Second :
program that can be used to verify that a message that ran through the program on one computer has not been altered in transit to another computer which uses the same program. I finished code the mode of transit - But I can't figure that a program to guarantee that a message has not changed between its generation and its reception.

Can anyone help me with these 2 problems?

Thanks.

[Davide]

Hello!
Problem nr. 1:

string x = (5 + 5).ToString(); //same for other operations

As for your second problem, there is a class called FileInfo that can help you. You can check with it when is the last time when the file has been modified.

FileInfo v = new FileInfo("C:\\file.txt");

I am not sure what was the exact code to check for when it was last modified, but you can search for it in the MSDN reference library.