First C# Program

Problem solving with C#

The basic tools for understanding the flow and the results of simple programs are execution sheetsAn execution sheet is a manual way for observing and updating the values of the variables at each step of a program’s execution. and flowchartsA flowchart is a diagram that helps understand the sequence of instructions in a program having decisions.. However, they become complicated when we have problems with large number of decisions. Therefore we provide executable embedded code widgets to observe the program output by executing it.

We can run a program as many times as we want, to try out different inputs of variables. We can also edit these programs to observe the result of a change in a value or logic for our learning.

In C#, we use ReadLine() for input (to read a value from the user), and WriteLine() for print (to display a value on the screen as output).

Hello World

It’s time to write our first program in C#, which will simply display the message “Hello World!” on the screen.